Hotel WiFi: A Practical Guide for UK Hotels (2026)

The short answer: Good hotel WiFi needs three things: a survey-led design with enough access points for your building, a fast and resilient internet connection behind it, and separate networks so guests never share a network with your reception, payments or property management system. Get those right and WiFi stops being a complaint. Get the separation wrong and you can also fall foul of PCI DSS, the card industry’s security standard.

In this guide:

Why hotel WiFi lets guests down

Most hotel WiFi problems come from a handful of causes:

  • The building. Thick stone or brick walls, fire doors, long corridors and several floors all block wireless signals. Gardens, terraces and outbuildings are often left out entirely.
  • Too few access points. A router behind reception and a few plug-in extenders cannot cover a hotel. Extenders also cut speed and make devices drop out as guests move around.
  • Not enough internet capacity. On a busy evening dozens of guests stream, video call and back up photos at once. A connection sized for the office will not cope.
  • One flat network. Guests, staff, card terminals and cameras all on the same network is slow to troubleshoot and a security risk.
  • No one looking after it. Consumer equipment with no monitoring means problems are found by guests, not by you.

Historic buildings are the hardest case. When we upgraded the network at the Norfolk Arms Hotel in Arundel, a 37-room listed property, thick stone walls blocked wireless signals and listed status restricted where equipment could go. The answer was a leased line and access points placed discreetly throughout the hotel and gardens, with separate guest WiFi networks.

What good hotel WiFi looks like

  • A site survey first. Measuring signal room by room, including bars, function rooms and outdoor areas, tells you how many access points you need and where. It is the difference between planned coverage and guesswork.
  • Business-grade access points, centrally managed. A managed system lets guests roam from room to restaurant without dropping off, and lets your IT provider see and fix problems remotely.
  • Cabled access points where possible. Wiring each access point back to a network switch gives far more reliable speeds than wireless repeaters.
  • An internet connection sized for your busiest night. Busy hotels often need a leased line, which gives the same speed in both directions and a business service level agreement.
  • A backup connection. A second line or 4G or 5G backup keeps guests and card payments online if the main line fails.
  • Monitoring. Your IT provider should be alerted when an access point or the internet line goes down, ideally before a guest notices.

Our business WiFi and wireless network service covers surveys, design and installation, and our IT support for hotels keeps the whole setup monitored and supported.

Keep guest WiFi away from your payments and systems

The most important design decision is separation. A typical hotel should run at least these networks, kept apart from each other:

NetworkWho or what uses itKey settings
Guest WiFiGuests’ phones, laptops and TVsInternet only, client isolation so guest devices cannot see each other, speed limits per device if needed
Staff networkReception PCs, office laptops, the property management systemStrong WPA2 or WPA3 security, password changed when staff leave
PaymentsCard terminals and any device that handles card dataNever on guest WiFi, with security controls between it and every wireless network, as PCI DSS requires
Building systemsCCTV, door locks, heating controls, smart TVsKept apart from both guests and staff, with default passwords changed

Separation stops a guest’s infected laptop from reaching your reception PC, keeps cameras and smart devices out of reach, and makes problems far easier to trace.

Hotel WiFi and PCI DSS

If you take card payments, the Payment Card Industry Data Security Standard (PCI DSS) applies, and it has specific rules for wireless networks. In PCI DSS v4.0.1:

  • Requirement 1.3.3: network security controls must be installed between all wireless networks and the cardholder data environment, and all wireless traffic into that environment must be denied by default.
  • Requirement 11.2.1: you must test for wireless access points, detect and identify both authorised and unauthorised ones, at least once every three months.
  • Requirements 2.3.1 and 2.3.2: for any wireless network connected to card systems, vendor defaults such as default encryption keys must be changed, and keys must be changed when someone who knows them leaves.

The simplest way to meet these is to keep card terminals on their own isolated network, or on their own mobile data connection, never on guest WiFi, and to have your IT provider document the setup. Your card provider or acquiring bank will tell you which self-assessment questionnaire applies to you.

Collecting guest details through WiFi

Many hotels use a WiFi login page to collect email addresses. That is allowed, but email marketing has to follow PECR, and the ICO’s guidance is clear on the main points:

  • You normally need consent before sending marketing emails to individuals.
  • Consent must be freely given. Making agreement to marketing a condition of a service is unlikely to be valid consent.
  • You must not use pre-ticked boxes, silence or inactivity as consent.
  • The soft opt-in, which lets you market similar products without consent, only applies to details you collected during a sale or negotiations for a sale, and you must offer an opt-out when you collect the details and in every message.

The simplest approach is to let guests connect without signing up to marketing, and offer the newsletter as a separate, unticked choice. Your privacy notice should explain what the login page collects and why. This is general information, not legal advice.

Some hotels also filter guest WiFi. Friendly WiFi is a voluntary, government-supported accreditation that confirms a venue’s public WiFi blocks pornography and child abuse content, which is worth considering if families stay with you.

The Booking.com phishing threat

Hotels are a deliberate target. In March 2025 Microsoft reported a phishing campaign, running since December 2024, that impersonated Booking.com and targeted people at hospitality organisations across Europe and other regions. The emails posed as guest complaints, booking requests or account checks, then led staff to a fake verification page that tricked them into running a command which installed malware designed to steal passwords and financial data.

Phishing is the most common attack UK businesses face. The government’s Cyber Security Breaches Survey 2025/26 found that 43% of businesses reported a breach or attack in the previous 12 months, and phishing affected 38%.

A few steps make a big difference for hotel teams:

  • Turn on multi-factor authentication for email, your booking platform extranets and the property management system.
  • Check guest messages and account alerts by logging in to the booking platform directly, never through a link in an email.
  • Treat any page that asks you to paste or run a command as an attack.
  • Keep reception and back office PCs off the guest WiFi, with up-to-date security software.

Our cyber security services help hotels protect email and Microsoft 365 and monitor for threats around the clock.

Hotel WiFi checklist

  • Coverage has been surveyed in every room, public area and outdoor space.
  • Access points are business grade, centrally managed and cabled where possible.
  • The internet connection copes with your busiest evening, with a backup line.
  • Guests, staff, card payments and building systems are on separate networks.
  • Guest devices are isolated from each other.
  • Default passwords and encryption keys have been changed, and staff passwords change when people leave.
  • Wireless access points are checked at least every three months if card systems are in scope.
  • The WiFi login page does not force guests to accept marketing.
  • Someone is alerted when the WiFi or internet line goes down.

If you would like a second opinion on your hotel’s WiFi, our team in Arundel and Chichester can survey your property, review how your networks are separated and recommend practical fixes. We have supported businesses since 2015, and we also look after phones and telecoms for hospitality.

Frequently asked questions

Should hotel guest WiFi be separate from the hotel’s own network?

Yes. Guests should be on their own network, kept apart from reception PCs, the property management system, card terminals and CCTV. If you take card payments, PCI DSS requires network security controls between all wireless networks and the cardholder data environment, with wireless traffic into it denied by default.

How many WiFi access points does a hotel need?

It depends on the building rather than the number of rooms alone. Thick walls, long corridors, several floors and outdoor areas all change the answer. A site survey that measures signal room by room is the reliable way to plan coverage, and it avoids paying for access points you do not need.

Can a hotel collect guest email addresses through the WiFi login page?

Yes, but marketing emails need valid consent unless the soft opt-in applies. The ICO says consent must be freely given, that making marketing a condition of a service is unlikely to be valid consent, and that pre-ticked boxes must not be used. Keep the WiFi login and the marketing choice separate.

Is open guest WiFi without a password safe?

Open WiFi lets anyone nearby join and offers guests less protection. A password shared at check-in or a login page, combined with client isolation so guest devices cannot see each other, is a safer setup. Your own staff and payment systems should never share a network with guests.

What internet connection does a hotel need for guest WiFi?

Enough to cope with your busiest evening, when many guests are streaming and calling at once. Busy hotels often need a leased line, which gives the same speed in both directions with a business service level agreement, plus a backup connection so WiFi stays up if the main line fails.

Does hotel guest WiFi need content filtering?

Some venues filter guest WiFi to block harmful content. Friendly WiFi is a voluntary accreditation, supported by the government, which confirms that a venue’s public WiFi blocks pornography and child abuse content. It is worth considering if families stay with you.

Sources

This guide is general information, not legal or compliance advice. Check your PCI DSS obligations with your card provider.

Cyber Security and Resilience Bill: What It Means for Small Businesses (2026)

The short answer: The Cyber Security and Resilience Bill updates the UK’s cyber security law for essential services and, for the first time, brings medium and large managed IT providers into scope. In-scope providers will have to register with the Information Commission, put proportionate security measures in place, report significant incidents within 24 hours and tell affected customers. Most small businesses will not be regulated directly, but the Bill will change what you can expect from your IT provider, and from larger customers you supply. It is not law yet: it has passed the Commons and its Lords Committee stage, and Lords Report stage is scheduled for 26 October 2026.

In this guide:

What is the Cyber Security and Resilience Bill?

The Cyber Security and Resilience (Network and Information Systems) Bill reforms the Network and Information Systems Regulations 2018, known as the NIS Regulations. These are the UK’s only cross-sector cyber security law, and they cover essential services such as energy, transport, health, drinking water and digital infrastructure, plus some digital services like cloud computing and online marketplaces. The government describes the 2018 rules as out of date and insufficient.

The Bill has three pillars: widen the scope to cover more of the organisations essential services depend on, give regulators stronger tools, and let the government update the rules quickly as threats change. It also requires more incidents to be reported. The government’s summary of the Bill sets out why:

  • Cyber attacks are estimated to cost UK businesses £14.7 billion a year, about 0.5% of GDP.
  • Over 40% of UK businesses experienced a cyber attack, equivalent to more than 600,000 organisations.
  • The National Cyber Security Centre (NCSC) handled 429 incidents in the year to September 2025, of which 204 were nationally significant, more than double the previous year.

Where has the Bill got to?

The Bill was introduced in the House of Commons in November 2025 and has completed its Commons stages. In the House of Lords it has finished Committee stage, and Report stage is scheduled for 26 October 2026, with Third Reading to follow. The latest version, as amended in Grand Committee, was published on 7 September 2026.

Royal Assent is only the start. A few measures take effect on Royal Assent or two months after, but most of the new duties, including those for managed service providers, critical suppliers and incident reporting, will be switched on later through secondary legislation. The government plans to consult on the detail during 2026 and has said affected organisations will get an adjustment period before new duties apply. We will update this guide as that detail is published.

Who does it apply to?

WhoCovered now (NIS 2018)Covered under the Bill
Operators of essential services (energy, transport, health, water, digital infrastructure)YesYes
Some digital services (cloud computing, online marketplaces, search engines)Yes, medium and large onlyYes, medium and large only
Managed service providers (IT providers)NoYes, medium and large
Data centresNoYes, above set thresholds
Large load controllersNoYes, above set thresholds
Critical suppliers designated by a regulatorNoYes, of any size

Source: government factsheets on the Bill, updated 30 June 2026.

Why IT providers are being brought in

Managed service providers usually have broad, trusted access to their customers’ systems. That makes them an attractive target: one successful attack on a provider can reach many businesses at once. The government’s factsheet on managed service providers points to an incident in May 2024 involving an MSP that put the personal data of around 270,000 serving military personnel, reservists and veterans at risk. Its 2025 policy statement estimated that this measure would bring a further 900 to 1,100 MSPs into scope.

A provider is in scope if it provides managed services in the UK, meaning the ongoing management of a customer’s IT systems with access to those systems, and is not a small or micro enterprise. The government gives examples:

In scopeOut of scope
An IT company managing a business’s systems, on site or remotely, including backups, monitoring and firewall managementA company that installs IT systems but does not manage them afterwards
An IT security company providing ongoing firewall management and incident response through a connection to the customer’s systemsA software company selling software as a product, including ad hoc remote patch updates
An IT company providing ongoing management of a cloud service, including configuration and monitoringAn accountancy, tax or legal firm advising by email, phone or in person

The small business exemption

Small and micro providers are exempt from the managed service provider duties. The Bill defines size using the EU test in Commission Recommendation 2003/361/EC, the same test the current rules use for digital services:

SizeStaffTurnover or balance sheet total
MicroFewer than 10Up to €2 million
SmallFewer than 50Up to €10 million
MediumFewer than 250Turnover up to €50 million or balance sheet up to €43 million

So many local IT providers, including the smaller firms most small businesses use, will fall outside the managed service provider rules. Two caveats: a provider that is part of a larger group may have to count the whole group, and any provider, however small, can be designated as a critical supplier.

What in-scope IT providers will have to do

  • Register with the Information Commission, the body formerly known as the ICO, which will regulate managed service providers.
  • Manage risk by taking appropriate and proportionate measures to protect the systems their managed services rely on, and to prevent and limit the impact of incidents.
  • Report significant incidents with a short initial notification within 24 hours and a full report within 72 hours, sent to the regulator with the NCSC informed at the same time. (Incident reporting factsheet.)
  • Tell affected customers. After reporting, providers will have to identify customers likely to have been affected and notify them with details of the incident.
  • Appoint a UK representative if they are based overseas.

Regulators will be able to inspect, issue enforcement notices and fine. Under the Bill, maximum penalties rise to £17 million or 4% of worldwide turnover, whichever is higher, for the more serious breaches, and £10 million or 2% for less serious ones. What counts as a “significant” incident will be set out in secondary legislation after consultation.

Does it affect my business?

If you run a small business that is not an essential service and not an IT, cloud or data centre provider, the Bill is unlikely to regulate you directly. It can still reach you in three ways.

1. Through your IT provider

If your IT provider is medium or large, it will be regulated. You should see clearer incident notifications, more scrutiny of how it secures remote access to your systems, and possibly new contract terms. If your provider is small, the law will not require any of this, but nothing stops you asking for the same standards.

2. If you supply essential services

Regulators will be able to designate a supplier as critical if it directly supplies an operator of essential services, or a regulated digital or managed service provider, relies on IT to do so, and a disruption to it would have a significant impact on the economy or daily life in the UK. Size is no barrier: small and micro businesses can be designated. Designation follows a set process, including consultation, and can be appealed. We expect it to be uncommon, but it is worth knowing about if you supply the NHS, energy, water or transport.

3. Through larger customers

We expect regulated organisations, and the larger businesses that supply them, to look harder at the security of the suppliers they depend on. In practice that means more security questionnaires and more requests for evidence such as Cyber Essentials when you tender for work. Our analysis of government data shows Cyber Essentials uptake is already rising fast, with contracts among the main reasons firms certify.

Eight questions to ask your IT provider

Whether or not your provider is in scope, these questions tell you a lot about how seriously it takes the access it has to your business:

  1. Are you in scope of the Cyber Security and Resilience Bill as a managed service provider, and if not, why not?
  2. If you have a security incident that could affect us, how quickly will you tell us, and is that written into our contract?
  3. How is your remote access to our systems secured? Does every engineer account use multi-factor authentication?
  4. Who in your team has administrator access to our systems, and how is that access removed when someone leaves?
  5. Do you hold Cyber Essentials, or Cyber Essentials Plus? When was it last renewed?
  6. Where are our backups held, how often are they tested, and could an attacker who got into our network delete them?
  7. Do you have an incident response plan for your own business, and have you tested it?
  8. Which other companies do you rely on to support us, such as remote monitoring tools or cloud platforms, and how do you check their security?

If you are weighing up a change of provider, our guide to how managed service providers work explains what a good one should cover.

What to do now

This Bill does not require small businesses to do anything yet, although existing data protection law already does, including reporting serious personal data breaches. The measures behind the Bill are simply good practice, and most are cheap or free:

  • Get the basics certified. Cyber Essentials covers the five controls that stop most common attacks, and it is increasingly what customers ask for.
  • Turn on multi-factor authentication for every cloud service and every admin account, including your IT provider’s.
  • Check your backups are separate from your main network and that someone has actually tested a restore.
  • Write a one-page incident plan: who to call, how to reach your IT provider out of hours, and when to contact your insurer and the Information Commission (formerly the ICO).
  • Use the free NCSC tools. The Cyber Action Toolkit gives small businesses a tailored set of actions, and Early Warning is a free NCSC service that alerts you to potential attacks on your network.
  • Check your email domain. Our free DMARC checker shows in seconds whether criminals can send email that looks like it came from you.

If you would like a second opinion on where your business stands, our cyber security services team in Arundel and Chichester can review your setup and your current provider’s access. We are Cyber Essentials certified ourselves and have supported businesses since 2015.

Frequently asked questions

Is the Cyber Security and Resilience Bill law yet?

Not yet. It has passed the House of Commons and its Lords Committee stage, and Lords Report stage is scheduled for 26 October 2026, with Third Reading to follow. Even after Royal Assent, most of the new duties, including those for managed service providers, will only start once secondary legislation is made, and the government has said affected organisations will get time to adjust.

Does the Cyber Security and Resilience Bill apply to small businesses?

Most small businesses are not directly regulated. The Bill covers operators of essential services, data centres, large load controllers, and medium and large managed and digital service providers. A small business can still be designated as a critical supplier if it supplies a regulated organisation and a disruption would have a significant impact on the UK.

Which IT providers are covered by the Bill?

Managed service providers that provide ongoing management of IT systems for UK customers, such as remote monitoring, backups or firewall management, unless they are a small or micro enterprise. The Bill uses the EU definition, under which a small enterprise has fewer than 50 staff and turnover or balance sheet of no more than 10 million euros.

How quickly will incidents have to be reported?

In-scope organisations will have to send a short initial notification within 24 hours of becoming aware of a significant incident, and a full report within 72 hours. Managed service providers will also have to identify customers likely to have been affected and tell them.

Who will regulate managed service providers?

The Information Commission, the body formerly known as the ICO. In-scope providers will have to register with it, and it will be able to inspect, enforce and fine.

What are the fines under the Bill?

Up to 17 million pounds or 4% of worldwide turnover, whichever is higher, for the more serious breaches, and up to 10 million pounds or 2% of worldwide turnover for less serious ones. Regulators decide the actual amount within those limits.

Sources

This guide explains the Bill as it stood in October 2026. It is general information, not legal advice.

Do You Need Cyber Insurance? What UK Insurers Ask About Your IT (2026)

The short answer: No UK law makes a business buy cyber insurance, but most businesses that rely on email, cloud systems or customer data should seriously consider it. Almost half of UK businesses (47%) have some cover, yet only 10% hold a specific cyber policy, according to the government’s Cyber Security Breaches Survey. Before insurers quote, they will ask about your IT: multi-factor authentication, backups, endpoint protection, patching and admin access come up again and again, and wrong answers on the proposal form can reduce a claim or let the insurer refuse it.

Last updated: 6 October 2026. Checked against the Cyber Security Breaches Survey 2025/2026, NCSC guidance, IASME, the ABI and the Insurance Act 2015 on that date. We are an IT provider, not an insurer or broker: for advice on a specific policy, speak to a regulated insurance broker.

In this guide

Do you need cyber insurance?

You are not legally required to have cyber insurance, but it is worth having if a cyber incident would cost you money you could not easily absorb: lost trading days, an IT specialist working through the weekend, legal advice, notifying customers, or a claim from a client whose data was exposed. Some larger clients and contracts also ask suppliers to hold it, so check your contracts.

Many businesses already have some cover without realising, because it is often bundled into a wider business policy. The Cyber Security Breaches Survey 2025/2026 found that 47% of businesses and 35% of charities were insured against cyber risks in some way, but “only 10% of businesses and 5% of charities had a specific cyber security insurance policy”. Bundled cover is often narrower than a standalone policy, so it is worth checking what yours actually includes.

Business sizeCovered as part of a wider policySpecific cyber policy
Micro (1 to 9 staff)37%8%
Small (10 to 49 staff)40%15%
Medium (50 to 249 staff)36%24%
Large (250+ staff)22%32%
All businesses37%10%
Source: Cyber Security Breaches Survey 2025/2026 (DSIT, published 30 April 2026), Figure 3.4.

In total, 55% of small and 61% of medium businesses had some form of cover, and 22% of businesses did not know whether they were covered at all. The survey describes take-up as broadly consistent over recent years (43% in 2023/2024, 45% in 2024/2025 and 47% in 2025/2026). The smallest firms, which are least likely to have IT staff or spare cash to recover from an incident, are also the least likely to hold a dedicated policy.

Insurance is a backstop, not protection. The NCSC puts it plainly: “Cyber insurance will not instantly solve all of your cyber security issues, and it will not prevent a cyber breach/attack” (NCSC cyber insurance guidance). The controls that make you insurable are the same ones that protect against the most common attacks, which is why the rest of this guide focuses on them.

What does cyber insurance cover?

A cyber policy typically pays for the cost of responding to an incident, the income you lose while systems are down, and claims made against you by others. Wording varies a lot between insurers, so treat this as a guide to what to look for rather than a promise of what any policy includes. As a real example, the policy included at no extra cost with Cyber Essentials certification (described by IASME) includes these sections:

SectionWhat it pays for
Incident response and event managementSpecialist IT forensics, data recovery, legal advice, notifying affected people, credit monitoring and reputation management
Business and network interruptionLost income while your systems are down, usually after a waiting period (a six-hour network interruption retention on the Cyber Essentials policy)
ExtortionCosts of dealing with a threat, such as ransomware
LiabilityClaims against you, for example from customers whose data was exposed, and media liability
Regulatory investigationsDefence costs, and fines where they are insurable by law
Based on the Cyber Essentials cyber liability policy summary published by IASME. Other policies differ.

The NCSC suggests seven questions to ask before you buy, including “What does the cyber insurance policy cover (or not cover)?”, “Does the policy include support during (or after) a cyber security incident?” and “What must be in place to claim against (or renew) your cyber insurance policy?” The last one is the question most businesses skip, and the one that matters most if you ever claim.

What will insurers ask about your IT?

Insurers ask whether you have the basic security controls that protect against the most common attacks, and insurance broker Marsh warns that businesses which do not meet insurers’ expectations often face non-renewal or cannot get their preferred cover, with limits on ransomware cover becoming more common. Marsh lists twelve key controls and in its UK guidance notes that insurers “consistently scrutinise privileged account management”, alongside patching and endpoint detection and response. These are the twelve, with what each means for a small business:

Control (as Marsh names it)What it means in practiceWhat to have ready
Multifactor authentication (MFA) for remote access and privileged or administrator accessA code or app approval as well as a password, on email, Microsoft 365, remote access and every admin accountA report showing MFA is enforced for all users, not just available
Email filtering and web securityScanning of incoming email and blocking of malicious links and websitesWhich email security service you use and what it covers
Secured, encrypted, and tested backupsBackups that ransomware cannot reach or delete, including Microsoft 365 data, restored as a testWhere backups are kept, how often they run, and the date of your last test restore
Privileged access management (PAM)Separate admin accounts used only for admin work, kept to as few people as possibleA list of who has admin rights, and why
Endpoint detection and response (EDR)Security software on every laptop, PC and server that detects and contains suspicious behaviour, not just known virusesThe product name and confirmation it is on every device
Patch and vulnerability managementSecurity updates installed promptly on computers, servers, firewalls and appsPatching reports, and how quickly critical updates are applied
Incident response plansA written plan for who does what if you are attacked, including who to phoneThe plan, and when it was last reviewed
Cybersecurity awareness training and phishing testingRegular short training so staff recognise phishing and payment fraudTraining records
Remote desktop protocol (RDP) mitigation and other hardening techniquesNo remote desktop open to the internet, default passwords changed, unnecessary services switched offConfirmation that RDP is not exposed
Logging and monitoringSign-ins and security events recorded and watched, so problems are spottedWho monitors alerts, and when
Replacement or protection of end-of-life (EOL) systemsNo unsupported software, such as Windows 10 without extended updates, or isolated if it must stayA device list showing operating system versions
Digital supply chain cyber risk managementKnowing which suppliers can access your systems or data, and checking they are secureA supplier list, including your IT provider
Control names from Marsh’s “Cyber resilience: twelve key controls”. The practice and evidence columns are our own summary, not Marsh’s.

Questionnaires differ between insurers, and smaller policies may ask only a handful of these. MFA, backups and endpoint protection are the ones to have in place first. If your Microsoft 365 licence already includes the tools (Business Premium does), our guide to Microsoft 365 Business Premium explains what to switch on.

What does cyber insurance not cover?

Most policies have exclusions, limits and conditions that catch businesses out. These are the ones to look for in the wording before you sign:

  • Money stolen through payment fraud. Losses from invoice fraud and fake bank detail changes are not always covered. The Cyber Essentials policy, for example, excludes “money stolen by electronic means or cyber fraud”. If this matters to you, ask specifically whether social engineering or funds transfer fraud is covered and at what limit. Our guide to invoice fraud and business email compromise explains how these scams work.
  • State-backed attacks. Since 31 March 2023, Lloyd’s has required standalone cyber policies written in its market to exclude losses from state-backed cyber attacks that significantly impair a state’s ability to function or its security capabilities (Lloyd’s Market Bulletin Y5381). Policies outside Lloyd’s may have their own war or state-backed exclusions, so check the wording.
  • The excess and waiting period. The Cyber Essentials policy has a £1,000 excess and a six-hour network interruption retention (a waiting period before that cover applies). Other policies will differ, so check both.
  • Controls you said you had but did not. If you told the insurer MFA was on for everyone and it was not, the claim may be reduced or refused. See the next section.
  • Limits that are too low. A £25,000 limit can be used up quickly by forensic investigators and lost income. Ask your broker how the limit compares with what a week of downtime would cost you.
  • Improvements. Ask whether the policy pays to replace old systems with better ones after an incident, or only to restore what you had.

Why your answers on the proposal form matter

Under the Insurance Act 2015, a business buying insurance must make “a fair presentation of the risk” before the contract starts, and every material statement of fact must be “substantially correct” (section 3). Ticking “yes” to MFA or tested backups when that is not true is the kind of statement that can come back to bite you.

What happens if an answer turns out to be wrong depends on how serious it was. Under Schedule 1 of the Act, the insurer has remedies where it would not have offered the same terms had it been told the truth. If the misstatement was deliberate or reckless the insurer can avoid the policy, refuse all claims and keep the premium. If it was an honest mistake, the remedy depends on what the insurer would have done had it known: refuse cover altogether (returning the premium), apply different terms, or pay only a proportion of the claim if it would have charged more.

Policies also contain ongoing conditions, such as keeping MFA switched on or backing up regularly. These are separate from your answers on the form. Section 11 stops an insurer relying on a breach of this kind of condition if you can show the breach could not have increased the risk of the loss that actually happened. It does not help if the missing control is relevant to how the incident happened, and business policies can vary some of these default rules, so the wording of your policy matters.

The practical lesson: answer the IT questions with whoever runs your IT, and fix the gaps before you sign rather than after. Your IT provider should be able to tell you, with evidence, which answers are true today.

Does Cyber Essentials help with cyber insurance?

Yes. Insurance data reported by the government shows that “organisations with Cyber Essentials are 92% less likely to make a claim on their insurance than those without it” (the then cyber security minister Feryal Clark, 23 October 2024). The NCSC Annual Review 2025 attributes the figure to data from the Cyber Essentials insurance provider. It shows that certified organisations claim less, not that the certificate alone caused the difference. The five Cyber Essentials controls (firewalls, secure configuration, user access control, malware protection and security updates) also overlap heavily with what insurers ask, and since 27 April 2026 missing MFA on cloud services, or not installing high-risk or critical updates within 14 days, is an automatic fail.

Certification also includes cyber cover at no extra cost for eligible organisations who opt in. According to IASME:

FeatureCyber Essentials cyber liability insurance
Limit£25,000 total
Who is eligibleUK or Crown Dependency organisations with turnover under £20 million that certify the whole organisation
How you get itOpt in when you complete the Cyber Essentials assessment
InsurerAIG, administered by Sutcliffe & Co Insurance Brokers
Incident supportA 24-hour helpline for crisis management and incident response, within the £25,000 limit
Excess£1,000 (£5,000 for claims in the USA or Canada)
Main exclusion to noteMoney stolen by electronic means or cyber fraud
How long it lasts12 months from certification; it renews only when you renew Cyber Essentials
Higher limits£100,000 or £250,000 available at extra cost
Source: IASME, Cyber Essentials cyber liability insurance.

For a very small business, that may be a sensible starting point. For many businesses with more than a handful of staff, £25,000 is a floor rather than enough, and a standalone policy arranged through a broker is worth pricing. Our Cyber Essentials requirements guide explains the 2026 rules, and our Cyber Essentials cost guide sets out the fees.

How much are cyber insurers paying out?

Payouts are rising sharply. Data from insurers in the Association of British Insurers’ data collection shows that “£197 million was paid out to help businesses recover from cyber incidents in 2024”, a 230% increase on the amount paid in 2023 (ABI, November 2025). Malware and ransomware accounted for 51% of claims, up from 32% the year before, and 17% more policies were taken out than in the previous year.

With malware and ransomware now behind half of claims, it is no surprise that insurers focus so heavily on backups and MFA. An attacker who gets in through an account without MFA and then finds backups they can delete can turn a bad day into weeks of disruption.

Will cyber insurance pay a ransom?

Some policies include extortion cover, but whether a ransom can be paid is not just a question for the insurer. In July 2025 the government announced plans to ban public sector bodies and critical national infrastructure operators from paying ransoms, to require other businesses to notify the government before paying, and to introduce mandatory reporting of ransomware incidents. At the time of writing (October 2026) these measures have not yet become law, so check the current position, and your policy wording, before relying on extortion cover.

Either way, paying is no guarantee of getting your data back. The surest route to recovery is backups that the attackers cannot reach.

Before you buy or renew: a checklist

  1. Find out what you already have. Check whether your existing business policy includes any cyber cover, and what it excludes.
  2. Get the questionnaire early. Ask your broker for the insurer’s IT questions a month or two before renewal, not the week before.
  3. Go through it with your IT provider. Answer each question with evidence, not memory.
  4. Fix the gaps first. MFA everywhere, backups that are separate and tested, endpoint protection on every device, patching up to date and admin rights cut back.
  5. Check the exclusions. Especially payment fraud, the excess, waiting periods and any conditions you must keep meeting.
  6. Check the limit. Work out roughly what a week without your systems would cost, and compare it with the cover.
  7. Know who to call. Keep the insurer’s incident helpline number somewhere you can reach it if your email and files are down.
  8. Consider Cyber Essentials. It proves the basics are in place and, for eligible smaller businesses that opt in, includes £25,000 of cover.

How ATS Connection helps

We do not sell insurance or advise on policies. What we do is run the IT that insurers ask about, so you can answer the questionnaire honestly and meet its requirements. Our Core support package (from £30 per user per month) includes patching, endpoint protection, 24/7 proactive monitoring and staff onboarding and offboarding. Complete IT and security (from £55 per user per month) adds managed cyber security, Microsoft 365 management, backup and disaster recovery, and Cyber Essentials guidance. See our IT support packages and pricing for the detail.

We are Cyber Essentials certified ourselves, and supported Cyber Essentials certification costs £510 plus VAT for businesses with up to 9 employees. If your renewal is coming up, book a free IT review and bring the insurer’s questions with you: we will tell you which answers are true today and what needs fixing. You can also read more about our cyber security services or our plain-English guide to what cyber security covers.

Frequently asked questions

No. No UK law requires businesses to hold cyber insurance. Some clients and contracts ask suppliers to have it, so check your contracts, and consider it if a cyber incident would cost more than you could comfortably absorb.

How many UK businesses have cyber insurance?

The Cyber Security Breaches Survey 2025/2026 found that 47% of UK businesses were insured against cyber risks in some way, but only 10% had a specific cyber security insurance policy. Among micro businesses, only 8% had a specific cyber policy.

What do cyber insurers ask about your IT?

Most ask about multi-factor authentication, backups, endpoint protection, patching, admin access, email security, staff training and incident response plans. Insurance broker Marsh lists twelve key controls that underwriters look for.

What does cyber insurance not cover?

Common gaps include money stolen through payment or invoice fraud, some state-backed attacks (Lloyd’s policies must exclude the most severe), losses during the waiting period, the excess, and claims where the business said it had security controls that were not actually in place. Policies differ, so read the exclusions before you buy.

Does Cyber Essentials include cyber insurance?

Yes, for eligible organisations. Organisations in the UK or Crown Dependencies with turnover under £20 million that certify the whole organisation can opt in to £25,000 of cyber liability insurance from AIG at no extra cost. It lasts 12 months and renews with the certificate.

Can an insurer refuse a cyber claim if my answers were wrong?

Yes. Under the Insurance Act 2015, where the insurer would not have offered the same terms had it known the truth: if a wrong answer was deliberate or reckless the insurer can refuse all claims and keep the premium. If it was an honest mistake, the insurer can refuse cover, change the terms or reduce the claim proportionately, depending on what it would have done had it known.

Does cyber insurance stop a cyber attack?

No. The NCSC says cyber insurance will not prevent a breach or attack. It helps pay for recovery. The security controls insurers ask about are what reduce the chance of an attack succeeding.

Sources

Invoice Fraud and Business Email Compromise: How It Works and How to Stop It

The short answer: Invoice fraud, also called mandate fraud, payment diversion fraud or business email compromise (BEC), is when a criminal gets between you and a genuine supplier and persuades you to pay a real invoice into their account, often using a hacked or spoofed email account. UK Finance recorded £41.3 million lost to invoice and mandate scams across 2,305 cases in 2025. The defence is part process, always confirming a change of bank details by phone on a number you already hold, and part IT: MFA, DMARC and alerts on suspicious mailbox rules.

Last updated: 1 October 2026. Checked against the UK Finance Annual Fraud Report 2026, NCSC guidance, the Payment Systems Regulator and Report Fraud on that date.

In this guide

What is invoice fraud and business email compromise?

Invoice fraud and business email compromise are names for the same family of scams, in which a criminal uses email to redirect a payment your business meant to make to someone else. Report Fraud, which replaced Action Fraud, puts it this way: “Mandate Fraud, also known as Payment Diversion Fraud (PDF) and Business Email Compromise (BEC), tends to affect businesses and customers where electronic financial transactions are taking place.”

UK Finance defines the most common version: “In an invoice or mandate scam, the victim attempts to pay an invoice to a legitimate payee, but the criminal intervenes to convince the victim to redirect the payment to an account they control.” The NCSC describes business email compromise more broadly as “a form of phishing attack where a criminal attempts to trick a senior executive (or budget holder) into transferring funds, or revealing sensitive information.”

TypeWhat happensWho it targets
Invoice or mandate fraudA supplier’s invoice is real, but an email tells you their bank details have changed. The new account belongs to the criminal.Accounts teams paying suppliers
CEO fraudAn email that appears to come from the managing director asks for an urgent payment, often while they are travelling or hard to reach.Finance staff and PAs
Conveyancing fraudCompletion funds are redirected after a solicitor’s or buyer’s email is compromised. See our guide to Friday afternoon fraud.Law firms, estate agents and home buyers
Common types of business email compromise. Definitions from UK Finance and Report Fraud.

How do criminals pull off business email compromise?

Most attacks follow the same pattern, and most steps leave something you can catch:

  1. They get into a mailbox. Often by phishing someone’s Microsoft 365 password, either yours or your supplier’s. See how to spot a phishing email.
  2. They read and wait. They learn who pays whom, how invoices are worded and when large payments are due.
  3. They hide their tracks. Microsoft says “Malicious inbox rules are common during business email compromise (BEC) and phishing campaigns and it’s important to monitor for them consistently.” Attackers set rules to delete, move or forward messages so the real person never sees the replies. Microsoft gives a typical example: “They create an inbox rule to forward all emails that contain keywords, such as ‘finance’ and ‘invoice’ in the subject or message body, to their mailbox.”
  4. They send the request. Either from the compromised mailbox itself, so it looks completely genuine, or from a lookalike domain one letter different from the real one.
  5. The money moves fast. Once a payment lands in the criminal’s account it is usually moved on quickly, which is why speed matters when you report it.

Here is what that request often looks like. Everything in this example is invented, but each warning sign is real. To test yourself on a similar email, try our free phishing test.

Example: illustrative mock-upFictional companies
 Inbox · accounts@ashcombeinteriors.co.uk
2RE: Invoice QT-4821 and updated bank details
KH
Karen Holt, Quillfield Timber 1<accounts@quillfie1dtimber.co.uk>
To: Sam Turner · Today 15:42

Hi Sam,

Thanks for confirming the order. Just to let you know, 3our bank details have changed following an audit and our old account is now closed. Please make the payment for invoice QT-4821 (£18,450.00) to the account below.

Account nameQuillfield Timber LtdSort code12-34-56Account number87654321

4Could this go in today’s payment run? We are holding your delivery until it clears.

5I’m on site all afternoon with no signal, so email is best. Just reply here once it has been sent.

Many thanks,
Karen

Five warning signs in this email
1
A lookalike address“quillfie1d” uses the number 1 in place of the letter l. The display name looks perfect.
2
It replies to a real threadThe invoice number is genuine because the criminal has been reading the emails.
3
New bank detailsGenuine suppliers rarely change accounts, and almost never by email.
4
Pressure to pay todayUrgency is there to stop you checking.
5
“Please don’t call”They need the conversation to stay in email, where they control it.
What to do: do not reply. Phone the supplier on a number you already hold and ask them to confirm their bank details.
All names, addresses and account details are invented for illustration.

And this is how the criminal stops anyone noticing: rules quietly set up inside the victim’s own mailbox, of the kind Microsoft warns about.

Example: illustrative mock-upFictional mailbox
 Mail settings · Rules
Inbox rules
Rules run automatically on every message that arrives.
Newsletters
IfFrom contains newsletter
ThenMove to Newsletters
1.
IfSubject or body includes invoicebankpaymentremittanceQuillfield
Then2Move to RSS Subscriptions and mark as read
3..
IfSubject or body includes invoicefinance
ThenForward to k.holt.accounts@freemail.example
What the criminal set up
1
A rule with no real nameA dot or two is easy to miss in a list of rules.
2
Replies are hiddenWhen the real supplier writes “we never changed our bank details”, it lands in a folder nobody opens, already marked as read.
3
Copies go outsideFinance emails are forwarded to an outside address, so the criminal keeps watching even after a password reset.
What to do: check your mailbox rules today, and ask your IT provider to alert you whenever a new rule or forward is created.
Based on the patterns Microsoft describes in its guidance on malicious inbox rules. All names are invented.

How common is invoice fraud in the UK?

UK Finance’s Annual Fraud Report 2026 recorded these losses for 2025:

Scam type (2025)CasesValue lostReturned to victims
Invoice and mandate fraud2,305£41.3m£20.0m
CEO fraud197£5.6m£1.1m
All authorised push payment fraud248,070£576.4mNot shown here
Source: UK Finance Annual Fraud Report 2026. Of the £576.4m total, £75.6m was lost by businesses.

These figures only count cases reported to banks. The Government’s Cyber Security Breaches Survey 2025/2026 found that 43% of UK businesses had a cyber security breach or attack in the last 12 months, that phishing was by far the most common, experienced by 38% of businesses, and that 12% reported others impersonating their organisation in emails or online.

Will the bank refund invoice fraud?

Possibly, but most businesses should not count on it. Since 7 October 2024, payment firms have generally had to reimburse eligible victims of authorised push payment scams, but the Payment Systems Regulator says the protections apply to individuals, microenterprises and charities. Claims are capped at £85,000, must be made within 13 months of the payment, and firms can apply an optional £100 excess. Businesses that are not microenterprises are outside that scheme, so prevention matters far more than recovery.

Confirmation of Payee helps. It is an account name-checking service that lets your bank check the name on the account before you pay. Treat a “close match” or “no, the name is wrong” result, or a failed check, as a reason to stop and phone the supplier, never as a box to click through.

If a payment does get as far as your banking app, this is the warning to look for:

Example: illustrative mock-upGeneric banking app
15:515G
‹ New payee
Name on the account
Quillfield Timber Ltd
Sort code
12-34-56
Account number
87654321
1The name is a close match

The account is held in a slightly different name. Check with the person you are paying before you continue.

Name on the account: QUILLFIELD TRADING LTD
Edit payee details
2Continue anyway
Confirmation of Payee is your last warning
Banks check the name you type against the name on the account before you pay. A criminal’s account may be held in a name close to the real supplier’s.
1
“Close match” or “the name is wrong”Treat either result as a reason to stop, not a box to tick.
2
“Continue anyway” is where the money goesIf you carry on after a warning, getting the money back may be harder.
What to do: stop, and phone the supplier on a number you already hold to confirm the account name and number.
Generic banking app. Wording varies between banks. All names and account details are invented.

How do you stop invoice fraud and business email compromise?

You stop it with two layers: a payment process that does not trust email, and IT controls that make mailboxes hard to take over. Report Fraud’s advice on mandate fraud is to contact the supplier directly “using their official and verifiable contact details to corroborate the payment request”, to “Establish robust internal processes for handling changes to payment details”, and to keep invoices and payment documents accessible only to the staff who need them.

Process controls

  • Call back on a number you already hold before acting on any change of bank details, never the number in the email asking for the change.
  • Limit who can change payee details and require a second person to approve the change.
  • Send a small test payment to new bank details and confirm it arrived by phone before sending the full amount.
  • Slow down urgent requests. Pressure to pay today, secrecy and “I can’t talk, just do it” are warning signs, especially from senior staff.

Put together, the process is simple enough to pin up next to every desk that pays invoices:

A simple process that stops itATS Connection
The call-back check
Use it every time a supplier, colleague or client asks you to pay to new or changed bank details.
1
PauseDo not reply to the email or use any phone number or link in it.
2
Call a number you already holdFrom your records, a past invoice or the supplier’s own website.
3
Confirm the detailsRead back the account name, sort code and number you were sent.
4
Second approvalA different person signs off the change before anyone pays.
5
Test, then paySend a small amount, confirm it arrived by phone, then send the rest.
STOPIf anyone pushes you to skip a step because it is urgent, treat that as the warning sign.

IT controls

ControlWhat it stops
MFA on every mailbox. The NCSC calls two-step verification “one of the most effective ways to protect online accounts when passwords are still in use”.Criminals logging in with a phished password
SPF, DKIM and DMARC on your domain. DMARC “allows you to set a policy for how receiving email servers should handle email which doesn’t pass either SPF or DKIM checks.”Criminals sending email that pretends to come from your exact domain
Alerts on new inbox and forwarding rulesAttackers hiding replies or copying your finance emails to themselves
Impersonation and lookalike-domain protectionEmails from domains one letter different from your suppliers or your directors
Staff phishing awarenessPassword theft, a common starting point
IT controls against business email compromise.

Lookalike addresses are the easiest of these to miss at a glance:

Example: illustrative mock-upFictional companies
Spot the fake sender
Criminals register addresses that look almost identical to a supplier’s. Read the part after the @ slowly.
✓
The real supplier
accounts@quillfieldtimber.co.uk
✕
accounts@quillfie1dtimber.co.uk
The number 1 in place of the letter l
✕
accounts@quillfieldtirnber.co.uk
“r” and “n” together look like an “m”
✕
accounts@quillfieldtimbers.co.uk
One extra letter
✕
accounts@quillfield–timber.co.uk
A hyphen added
✕
accounts@quillfieldtimber.com
A different ending
✕
Quillfield Timber <qt.accounts@freemail.example>
The right display name on a free webmail address
Impersonation protection in Microsoft 365 can flag lookalike domains, but a careful eye still matters. All names are invented.

Several of these need configuring in Microsoft 365, and some depend on your licence. Our Microsoft 365 Business Premium guide explains which plan includes what, and our managed cyber security service can help set them up.

What should you do if you have paid a fraudster?

  1. Call your bank immediately, on the number on its website or your card, and ask it to try to recall the payment. Minutes count.
  2. Report it to Report Fraud, the national reporting service for fraud and cyber crime in England, Wales and Northern Ireland, which replaced Action Fraud.
  3. Secure the mailbox. Reset the password, sign out all sessions, remove any inbox or forwarding rules you did not create and check which other accounts use the same password.
  4. Warn the supplier and your customers. If your mailbox was compromised, the criminal may try the same trick on people who trust your email address.
  5. Check whether it is a data breach. If personal data was exposed and the breach is notifiable, it must be reported to the ICO without undue delay and no later than 72 hours after becoming aware of it (ICO).

Frequently asked questions

What is the difference between invoice fraud and business email compromise?

They overlap. Business email compromise is the method, using a hacked or spoofed email account to trick someone, and invoice or mandate fraud is the most common result, a genuine invoice paid into the criminal’s account. Report Fraud uses mandate fraud, payment diversion fraud and business email compromise as alternative names for the same scam (Report Fraud).

Will my bank refund invoice fraud?

The mandatory reimbursement rules that started on 7 October 2024 apply to individuals, microenterprises and charities, with claims capped at £85,000 and made within 13 months (Payment Systems Regulator). Businesses that are not microenterprises are outside that scheme, so speak to your bank immediately and focus on prevention.

How much do UK businesses lose to invoice fraud?

UK Finance recorded £41.3 million lost to invoice and mandate scams across 2,305 cases in 2025, £28.0 million of it from business accounts, with £20.0 million returned to victims overall (UK Finance Annual Fraud Report 2026).

Can Microsoft 365 stop business email compromise?

It can block many of these attacks if it is configured properly: MFA on every account, DMARC on your domain, impersonation protection and alerts on suspicious inbox and forwarding rules. Several need configuring, and none of them replaces a call-back check before you change a supplier’s bank details. Our free DMARC checker shows in seconds whether your own domain is protected.

Where do I report invoice fraud?

Call your bank first, then report it to Report Fraud at reportfraud.police.uk, which replaced Action Fraud for England, Wales and Northern Ireland (City of London Police).

Sources

Cyber Security for Accountants: What UK Practices Need in Place in 2026

The short answer: Accountancy practices hold exactly what criminals want: client financial data, identity documents and access to HMRC agent accounts. The essentials are multi-factor authentication on every account (HMRC is switching it on for all remaining agent accounts between 28 September and 15 October 2026), protected and patched devices, defences against email impersonation, tested backups, and a breach plan that meets the UK GDPR 72-hour reporting deadline. Cyber Essentials is the usual way to prove the basics are in place.

Last updated: 1 October 2026. Checked against HMRC’s Tax Agents Handbook and Agent Update, ICO guidance, the Money Laundering Regulations and ICAEW’s 2026 Practice Assurance monitoring report on that date.

In this guide

Why are accountancy firms targeted?

Accountancy firms are targeted because one compromised mailbox or login can unlock many clients at once. As ACCA puts it, “Cybercriminals know that accounting firms hold the kind of high value data that they can sell, use to commit crimes or use as a springboard to launch further attacks.” A practice typically holds bank details, payroll data, passports and utility bills from client due diligence, and the credentials to file on behalf of hundreds of taxpayers.

HMRC has warned agents directly. Its Agent Update of September 2025 said: “Criminals are using increasingly sophisticated methods to target tax agents, including phishing emails claiming to be from realistic companies, clients and HMRC.” An earlier update described criminals “often tricking tax agents into downloading legitimate commercial software that gives them remote access to their devices”, and warned that HMRC may suspend a compromised account without notice. For a practice, a suspended agent account in January is a serious problem in its own right.

Phishing is still the most common attack UK businesses report. The Government’s Cyber Security Breaches Survey 2025/2026 found that 43% of UK businesses had a cyber security breach or attack in the last 12 months, and that phishing was by far the most common type, experienced by 38% of businesses.

What is changing with HMRC agent accounts?

HMRC is adding multi-factor authentication (MFA) to agent online services accounts. After entering your Government Gateway user ID and password, you are asked for a one-time access code, and HMRC says “This extra step helps protect your account, even if your sign in details have been compromised.” According to the Tax Agents Handbook, “All remaining accounts will automatically be activated between 28 September 2026 and 15 October 2026”, and HMRC cannot give a specific date for each account.

Three practical points for practices:

  • Decide where the codes go. Shared logins and a single partner’s phone become a bottleneck the first week MFA is live. Each person who files should have their own access.
  • Remove leavers. HMRC’s guidance is that “you should remove access for any staff who leave your organisation or no longer need access to your HMRC online services.” The same applies to Microsoft 365 and your practice software.
  • Use the security console. HMRC says agents can now report suspicious activity using the security console in their agent online account, as long as MFA is activated. Suspected phishing that mentions HMRC can be forwarded to phishing@hmrc.gov.uk.

HMRC’s Standard for Agents already expects agents to keep “online access and HMRC account credentials safe from unauthorised use at all times” and to “maintain the security of client information they hold”. MFA makes that much easier to show.

What do the rules require of an accountancy practice?

No single rule sets out an IT standard for accountants, but several obligations land on your systems. The main ones are:

ObligationWhat it means for your ITSource
UK GDPR breach reportingA notifiable breach must be reported to the ICO “without undue delay, but not later than 72 hours after becoming aware of it”. You need logging and alerting good enough to know what happened, fast.ICO
Money Laundering Regulations record keepingCustomer due diligence records must be kept for at least five years after the business relationship ends. That means secure, backed-up storage for ID documents with access limited to the people who need it.MLR 2017, reg 40
HMRC Standard for AgentsKeep HMRC credentials safe from unauthorised use and keep client information secure.HMRC
Professional body monitoringICAEW’s Practice Assurance reviews now cover cyber security and data protection. Its 2025 report found 34 firms that had not registered with the ICO.ICAEW 2025, ICAEW 2026
Making Tax Digital for Income TaxSole traders and landlords with qualifying income over £50,000 should have started from 6 April 2026, with £30,000 from April 2027 and £20,000 from April 2028. More clients, more software connections and more data to protect.HMRC
Obligations that affect IT in a UK accountancy practice.

On anti-money laundering supervision: accountancy service providers are currently supervised by their professional body or, if they have none, by HMRC. The government decided in October 2025 that the FCA will take over supervision of the professional services sector, with the start date “heavily dependent on the availability of parliamentary time”. The record-keeping duty does not change either way.

Which cyber security controls should an accountancy practice have?

Most of the risk is covered by a short list of controls, applied consistently to every account and device. ICAEW’s 2026 monitoring report recommends firms develop an incident response plan and test it at least annually, sign up to the NCSC’s Early Warning service and run staff training and awareness. In practice, a well-run practice has:

  1. MFA everywhere. Microsoft 365, HMRC agent services, practice management and cloud accounting software, banking and remote access. The NCSC says turning on two-step verification “is one of the most effective ways to protect online accounts when passwords are still in use”.
  2. Email that resists impersonation. SPF, DKIM and DMARC on your domain, impersonation protection for partners’ names, and alerts when someone creates a mailbox forwarding rule.
  3. Managed, encrypted devices. Every laptop encrypted, patched and running endpoint protection, including home-working machines. No client data on unmanaged personal devices.
  4. Controlled remote access. Remote access software only where you have chosen it, given HMRC’s warning about criminals persuading agents to install it.
  5. Least-privilege access and a leaver process. Staff see the client files and systems their role needs. Leavers lose access on their last day, across every system.
  6. A secure way to receive documents. A client portal or secure upload rather than passports and bank statements arriving as email attachments.
  7. Independent, tested backup. Microsoft 365 and practice data backed up outside Microsoft’s own retention, with restores tested, not assumed.
  8. A written incident plan. Who to call, how to contain an incident, and how you would meet the ICO’s 72-hour deadline. Tested once a year.

These map closely onto the five Cyber Essentials controls, which is why most practices start there. Our IT support for accountants service puts these controls in place and keeps them running.

Does an accountancy practice need Cyber Essentials?

Cyber Essentials is not a regulatory requirement for accountants, but it is the recognised baseline and the easiest way to show clients, insurers and your professional body that the basics are in place. ICAEW’s 2026 report describes certificates like it as helpful but often only a starting point, to be underpinned by strong cyber governance. Of the 121 larger firms ICAEW discussed cyber security with during its 2025 monitoring, 99% were aware of the scheme, 54% had completed the basic Cyber Essentials self-assessment and 29% had completed Cyber Essentials Plus (ICAEW Practice Assurance monitoring report 2026).

Our guide to Cyber Essentials cost sets out the fees, and the Cyber Essentials requirements checklist explains what you need in place first. ATS is Cyber Essentials certified and helps practices prepare for it.

What should a practice do if it is breached?

Act quickly, and in this order:

  1. Contain it. Call your IT provider, reset the affected passwords, revoke sessions and remove any forwarding rules or unknown remote access software.
  2. Protect your HMRC access. HMRC says that if you notice suspicious activity on your agent account you should not try to correct anything yourself and report it to its online services team straight away.
  3. Assess whether the ICO needs to know. A notifiable breach must be reported without undue delay and no later than 72 hours after becoming aware of it, and affected individuals must be told directly and without undue delay if it is likely to result in a high risk to them (ICO).
  4. Report fraud. Fraud and cyber crime in England, Wales and Northern Ireland is reported to Report Fraud, which replaced Action Fraud.
  5. Tell your insurer straight away if you have cyber cover. Many policies require notice before you incur recovery costs.
  6. Learn from it. Record what happened and what changed, which is what your professional body will want to see.

Frequently asked questions

Do accountants need Cyber Essentials?

No regulator requires it, but it is the recognised baseline and some clients and insurers ask for it. ICAEW’s 2026 Practice Assurance report found that 54% of the larger firms it discussed cyber security with had completed the basic Cyber Essentials self-assessment, and 29% Cyber Essentials Plus. See our guide to Cyber Essentials cost.

Is MFA mandatory for HMRC agent accounts?

HMRC is adding multi-factor authentication to agent online services accounts, and says all remaining accounts will be activated automatically between 28 September 2026 and 15 October 2026 (Tax Agents Handbook).

How long must accountants keep anti-money laundering records?

Under regulation 40 of the Money Laundering Regulations 2017, customer due diligence records must be kept for five years from the end of the business relationship, or from completion of an occasional transaction (legislation.gov.uk).

Do accountancy firms have to report a data breach?

If a personal data breach is notifiable, it must be reported to the ICO without undue delay and within 72 hours of becoming aware of it. If it is likely to result in a high risk to the people whose data is involved, they must be told directly and without undue delay too (ICO).

How much does cyber security cost for a small accountancy practice?

With ATS, practices handling client financial data typically sit on Complete IT and security at £55 to £90 per user per month, excluding VAT, which includes managed cyber security, Microsoft 365 management and independent backup. The full breakdown is on our IT support pricing page.

Sources

DSPT for Care Homes: A Plain-English Guide to the Data Security and Protection Toolkit

The short answer: The DSPT (Data Security and Protection Toolkit) is NHS England’s online self-assessment of how well an organisation protects personal data. Care providers complete a version with 45 mandatory questions to reach Standards Met, and must republish it every year by 30 June; the current 2026-27 toolkit is due by 30 June 2027. It is a contractual requirement if you deliver NHS-funded care, it is needed to use NHS systems such as NHS.net Connect and GP Connect, and it is expected of every CQC-registered care provider.

Last updated: 30 September 2026. Checked against the DSPT website, NHS England guidance and the Better Security, Better Care programme on that date.

In this guide

What is the DSPT?

The Data Security and Protection Toolkit is, in NHS England’s words, “an online self-assessment tool that enables organisations to measure and publish their performance against the National Data Guardian’s ten data security standards”. You answer questions about how your organisation handles personal information and protects its IT, upload or describe your evidence, and publish the result. Published statuses can be looked up on the DSPT website, so commissioners and NHS partners can check yours.

Health organisations such as NHS trusts now complete a longer version aligned to the NCSC’s Cyber Assessment Framework. Adult social care is not part of that change: NHS England says the change affects a specific group of large health and care organisations, and social care providers, GPs, dentists and pharmacies still complete the assertion and evidence version of the toolkit.

Do care homes have to complete the DSPT?

It depends on how you work with the NHS, but in practice almost every care provider should complete it. The position is:

Your situationWhat applies
You deliver care under the NHS Standard Contract, for example continuing healthcareA contractual requirement to complete and publish the DSPT every year
You want NHS.net Connect (formerly NHSmail)You need at least Approaching Standards
You want GP Connect, a shared care record or proxy access to GP recordsYou need Standards Met
You want to be counted as fully digitised under the government’s Digitising Social Care programmeYou need Standards Met plus an assured digital social care record
You hold local authority contractsSome councils require it in their contracts, so check yours
None of the aboveStrongly recommended, and increasingly expected by CQC
Sources: NHS Standard Contract 2026/27, the DSPT access to shared systems guidance, GOV.UK and Better Security, Better Care.

The NHS Standard Contract is explicit: “The Provider must complete and publish an annual information governance assessment in accordance with, and comply with the mandatory requirements of, the NHS Data Security and Protection Toolkit” (General Condition 21.2, 2026/27). Official sources differ on whether every other care provider is obliged to complete it: the Digitising Social Care programme says all CQC-regulated adult social care providers must, while Better Security, Better Care describes it as strongly recommended. Either way, the safe assumption is that it is expected.

CQC links it directly to leadership. Its Well-led quality statement on governance lists “Cyber security and data security and protection toolkit (DSPT)” as a topic inspectors look at (CQC assessment framework). CQC is piloting new sector-specific assessment frameworks in 2026, so the exact wording may change.

When is the DSPT deadline?

The deadline is 30 June every year. A new version of the toolkit is released each year, usually in September: the 2026-27 version (version 9) was released in September 2026, and NHS England confirms that the deadline is 30 June 2027.

Publishing once is not enough. Your assessment must be reviewed, updated and republished at least once a year, otherwise it goes out of date and no longer counts, as Digital Care Hub explains. Many providers leave it until June; starting in the autumn gives time to fix the IT gaps properly rather than writing an action plan for them.

What are the DSPT status levels?

When you publish, the toolkit gives you one of these statuses, set out in the DSPT help pages:

StatusWhat it takesNotes for care providers
Approaching StandardsThe 26 questions mandatory at this level, plus an uploaded action planAvailable to social care as a one-off, for your first publication only; you cannot republish at this level
Standards MetAll 45 mandatory questions answeredThe level to aim for, and the one needed for GP Connect and shared care records
Standards ExceededStandards Met plus a current Cyber Essentials Plus certificate recorded in your profileShows the strongest assurance to commissioners
Question counts for 2026-27 from Digital Care Hub; status definitions from the DSPT help pages.

What do the 45 mandatory questions cover?

Digital Care Hub groups the care provider questions into four areas. These are the main things you will need to show for 2026-27, with the question numbers used in the toolkit. Always check the exact wording in the toolkit itself, because it changes each year.

Staffing and roles

  • Security owned and directed by senior leaders, with regular discussion at that level (1.1.5).
  • Data security requirements in every employment contract and volunteer agreement (2.2.1).
  • Data security and cyber security covered at induction (2.1.1).
  • At least 95% of staff, directors, trustees and volunteers trained in data security and protection in the last twelve months (3.2.1).

Policies and procedures

  • Your ICO registration number (1.1.1).
  • An up-to-date information asset register and record of processing activities (1.1.2).
  • A privacy notice, data protection policies and a records retention and destruction process.
  • A list of your suppliers, and assurance that your IT suppliers take cyber security seriously (10.1.2 and 10.2.1).

Data security

  • A system for reporting data breaches (6.1.1). Incidents are reported through the toolkit, and a notifiable breach must reach the ICO without undue delay, normally within 72 hours.
  • A business continuity plan that covers data and cyber security (7.1.2), which has been tested (7.2.1).
  • Emergency contact details kept somewhere you can reach them if your systems are down (7.3.2).

IT systems and devices

This is often the section where care providers need help, because it depends on how your IT is set up. It is covered in detail below.

Which DSPT questions are about IT, and who does the work?

Many of the mandatory questions are about devices, accounts, backups and software. Someone in your organisation completes the toolkit, but the evidence for these usually has to come from whoever runs your IT:

QuestionWhat it asksWhat your IT provider should give you
4.2.4Access removed or changed when staff leave or change roleA leavers process and a record that accounts are disabled promptly
4.5.3Multi-factor authentication on all remotely accessible accountsMFA enforced on Microsoft 365, email and remote access, with a report to prove it
4.3.1Administrators sign an accountability agreementSeparate admin accounts, and a signed agreement for anyone who has one
6.2.1Up-to-date antivirus on all devicesManaged endpoint protection with a device report
7.1.1A register of your digital assetsAn up-to-date list of every laptop, PC, tablet, phone and system
7.3.1 and 7.3.4Secure backups of important data, and tested restoresIndependent backups, including Microsoft 365, and a record of a test restore
8.1.4All IT systems and software still supported by the manufacturer, or the risks understood and managedEvidence that nothing is out of support, such as old Windows versions
8.3.5Updates installed promptlyPatching reports showing security updates are applied
9.1.1Default router and network passwords changedConfirmation for every router, firewall and Wi-Fi access point
9.5.2Laptops, tablets and removable devices encryptedBitLocker or equivalent enforced, with a report
Question numbers and summaries from Digital Care Hub’s 2026-27 guidance.

Question 8.1.4 is worth checking now. Windows 10 stopped receiving free security updates in October 2025, so any care office PC still running it needs upgrading or paid extended updates. See our Windows 10 end of life guide.

Email matters too. Emails exchanged with health and social care organisations must meet the secure email standard (DCB1596). NHS.net Connect meets it, and NHS England names Microsoft 365 and Google Workspace as able to meet it when they are configured correctly.

How does Cyber Essentials fit with the DSPT?

Cyber Essentials is not mandatory for the DSPT, but it helps. According to the DSPT FAQs, organisations that hold Cyber Essentials Plus are exempt from some toolkit questions, and the DSPT status rules give Standards Exceeded to organisations with Standards Met and a current Cyber Essentials Plus certificate. The exemptions apply to Cyber Essentials Plus only, as Digital Care Hub explains.

The two overlap heavily: multi-factor authentication, supported software, patching, antivirus and account control appear in both. If you are working towards one, the same IT work counts towards the other. Our Cyber Essentials requirements guide explains the 2026 rules.

Where can care providers get free DSPT help?

The government funds free support through Better Security, Better Care. DHSC has confirmed £21 million to March 2029 to continue it, delivered by Digital Care Hub and the National Care Association. It offers a helpline on 0808 196 4848, templates, e-learning and local support organisations. In our area, the local partner for East and West Sussex and Brighton and Hove is West Sussex Partners in Care.

Take-up is high and rising. By 30 June 2026, almost 76.5% of CQC-registered adult social care services in England had an up-to-date DSPT: 22,429 services, including 12,887 care homes. A DHSC-commissioned survey found that a third of care providers had experienced a cyber incident or unsuccessful attack in the previous three years, and phishing was involved in three quarters of those.

ATS Connection looks after IT, Microsoft 365 and cyber security for care providers across Sussex. For the DSPT, we handle the IT side: multi-factor authentication, patching, encryption, backups and device records, and we give your DSPT lead the evidence they need for those questions. See our IT support for care homes and IT support for healthcare, or book a free IT review to find out where you stand.

Frequently asked questions

What is the DSPT?

The Data Security and Protection Toolkit is NHS England’s online self-assessment against the National Data Guardian’s ten data security standards. Organisations answer questions about how they protect personal data and IT, provide evidence and publish the result each year.

Is the DSPT mandatory for care homes?

It is a contractual requirement for providers delivering care under the NHS Standard Contract, and it is needed to use NHS systems such as NHS.net Connect and GP Connect. For other CQC-registered providers, the government’s Digitising Social Care programme says it is required, while Better Security, Better Care describes it as strongly recommended. Either way, CQC expects to see it.

When is the DSPT deadline?

30 June every year. The deadline for the 2026-27 toolkit is 30 June 2027. Your assessment must be republished at least annually or it goes out of date.

How many mandatory questions are there for care providers?

For 2026-27, care providers answer 45 mandatory questions to reach Standards Met, and 26 of them are mandatory for Approaching Standards.

What is the difference between Approaching Standards and Standards Met?

Approaching Standards is a one-off status for a care provider’s first publication, needing 26 questions and an action plan. Standards Met needs all 45 mandatory questions, and is required for GP Connect and shared care records.

Does Cyber Essentials count towards the DSPT?

Cyber Essentials Plus exempts you from some DSPT questions, and combined with Standards Met it gives Standards Exceeded. The exemptions are for Cyber Essentials Plus only, but the IT controls in basic Cyber Essentials help with both.

Who can help with the DSPT for free?

Better Security, Better Care offers free help to adult social care providers, including a helpline on 0808 196 4848, templates and local support partners. In Sussex, the local partner is West Sussex Partners in Care.

Sources

What Happens When Your Case Management System Goes Down

Every fee earner in the building tries to open a matter file at nine o’clock and nothing loads.

That is the moment most firms discover what their continuity plan is actually worth. Not the document in the compliance folder. The real one, which is whatever happens in the next thirty minutes.

This is a practical guide to what goes wrong, what to do in the first hour, and what needs to be true in advance for a bad morning to stay a bad morning rather than becoming a bad quarter.

Why case management outages hurt more than ordinary IT problems

When email goes down, people are inconvenienced. When case management goes down, the firm stops.

Your practice management system is not one application. It is the diary, the matter files, the time recording, the client ledger, the precedents, the workflow, and increasingly the phone integration and the document store as well. Lose it and you lose the ability to answer a straightforward question from a client about their own matter.

Three things make it worse for a law firm than for most businesses.

Deadlines do not move. A court deadline, a limitation date or a completion date is not sympathetic to an outage. Everything else can wait a day. These cannot.

Money is in flight. Conveyancing and probate teams may be mid-transaction with funds committed. An outage during a completion window is not an IT problem, it is a client problem with a financial consequence attached.

You still have to know what happened. If the outage involves data, the clock on your reporting duties starts when you find out, not when you finish fixing it. A reportable personal data breach must reach the ICO within 72 hours, and a serious breach of the SRA’s Standards and Regulations must be reported under Rule 3.9 of the Code of Conduct. Both of those are far harder to judge when nobody can see the system. We cover the wider picture in our guide to SRA IT requirements for solicitors.

What actually takes these systems down

In our experience the cause is rarely exotic.

The hosting provider has an outage. If your system is vendor-hosted, you are dependent on their infrastructure and their communication. You cannot fix it. What you can control is how quickly you know, and what you do while you wait.

The server or its host has failed. For on-premise systems, this is hardware, storage, or the virtual host underneath. Recovery time depends almost entirely on whether someone has tested restoring it.

The database has become corrupted. Often after an interrupted update or a storage fault. This is the one that catches firms out, because backups may have been faithfully copying a corrupted database for some time.

Connectivity has gone. The system is fine. You cannot reach it. A single broadband line with no failover turns a supplier’s roadworks into your outage.

Ransomware. Less common than the headlines suggest, far more serious when it happens. This is not a restore, it is an incident, and it brings reporting duties with it.

An update went wrong. Applied without a rollback plan, usually at the least convenient moment.

Knowing which of these you are in changes what you do next, which is why the first job is never “fix it”.

The first hour

The order matters. Most firms get this wrong by starting at step four.

  1. Establish scope, not cause. Is it one user, one office, or everyone? Can anyone reach the system from outside the building? Is it just case management, or is email affected too? Five minutes here saves an hour of chasing the wrong problem.
  2. Decide who is running this. One person, named in advance, who makes the calls and owns communication. Not a committee, and not whoever happens to be least busy.
  3. Tell people something. Fee earners will otherwise spend the morning individually rebooting laptops and ringing the same helpdesk. A single message saying what is known, what is not, and when the next update is coming buys you an enormous amount of calm.
  4. Now fix it. Or escalate it to whoever can, with the scope information from step one.
  5. Start the log. What time it started, what was seen, what was done. If this later turns into a reportable incident, this log is the difference between a defensible account and a guess.
  6. Protect the deadlines. Someone should be working out what is due today and this week, independently of the system, while the technical work happens. This is the step most often forgotten and the one clients notice.

Worked example: a Monday morning that stayed manageable

The following is an illustrative scenario rather than a specific client. It is built from the pattern these incidents commonly follow, and the timings reflect what is achievable when the preparation described below is genuinely in place.

08:52. A conveyancing assistant cannot open a matter. She assumes it is her laptop and restarts it.

09:05. Four more people report the same thing. The practice manager, who is the named incident owner, checks whether the system is reachable from her phone on mobile data. It is not. That rules out the office network and points at the system or the host.

09:10. She sends one message to all staff: case management is unavailable, the cause is being investigated, next update at 09:40, do not restart machines. She contacts the IT provider with what she already knows, which means the engineer starts from a position rather than from scratch.

09:15. The IT provider confirms the vendor’s hosted platform is down and it is affecting multiple firms. Nothing can be fixed locally. Focus shifts entirely to working around it.

09:20. The continuity plan is opened. Three things happen at once. The head of conveyancing pulls today’s completions from the exported diary held outside the system. Time recording moves to paper, with a note that it must be entered retrospectively. The reception team is briefed on what to tell clients, in one agreed sentence rather than seven improvised ones.

09:40. Second update to staff, on time. Still down, still no cause, next update at 10:30. Being on time matters more than having news.

11:15. Service is restored by the vendor. The IT provider verifies that the data is intact and that the last transactions before the outage are present, rather than assuming.

11:30. Staff are told they are back, and told specifically what to check and what to re-enter.

Afternoon. The practice manager writes up the log while it is fresh. Because no client data was lost or exposed, no ICO notification is required, but the assessment is documented so the reasoning is recoverable if anyone asks later.

The following week. The firm asks the vendor for a written incident report and reviews two things: whether the diary export should run more frequently than weekly, and whether the reception script was actually good enough.

Two and a half hours down. No missed deadline. No client who felt uninformed.

Now consider the same outage at a firm with no named owner, no exported diary, no agreed message and no log. Same two and a half hours of downtime, an entirely different day.

What has to be true in advance

None of the above is possible to invent on the morning. Six things need to exist beforehand, and they belong in a written plan. If you do not have one yet, our free business continuity plan template walks you through most of them in a few minutes.

A named incident owner, and a deputy. Someone has to decide. If it is not agreed in advance it defaults to whoever is loudest, which is rarely the right person.

A way to reach today’s deadlines without the system. A regular export of the diary and key dates, stored somewhere that does not depend on the system being up. This is unglamorous and it is the single highest value item on this list.

Backups you have actually restored. Not backups that report success. A backup is a theory until someone has restored it. Test restores should happen on a schedule and the results should be written down.

A known recovery time, and a known recovery point. How long it takes to get back, and how much work you lose. Most firms have never asked and are surprised by both answers. If your system is vendor-hosted, these are the vendor’s numbers and you should have them in writing.

A second route to the internet. Failover connectivity is inexpensive relative to a day of lost trading, and it removes an entire category of outage.

An agreed message. One paragraph for staff, one for clients. Written when nobody is panicking.

The question to ask your provider

Whether your system is hosted by the vendor or running on your own server, one question separates a real answer from a comfortable one.

“If our case management system was unavailable at nine tomorrow morning, walk me through exactly what happens, who does what, and when we would expect to be working again.”

If the answer is confident, specific, and includes who calls whom, you are in reasonable shape. If it is a reassurance about the quality of the backups, you have found a gap.

The follow-up is just as useful: “When did we last test that?”

Where ATS fits

ATS supports law firms using both vendor-hosted and on-premise case management systems, including environments built around platforms such as LEAP, Clio and Actionstep. In practice, most of what determines how a bad morning goes is not the case management system itself but the environment around it, and that is where our role usually sits: Microsoft 365, user access, networking and connectivity, security, backups and day-to-day support.

The work that matters here is the boring work. Knowing your recovery time before you need it, testing restores rather than trusting reports, keeping deadlines reachable when the system is not, and having the plan agreed before the morning it is needed.

If you are not confident what would happen at nine tomorrow morning, our free IT and cyber benchmark is a straightforward place to find out. You can also read more about IT support for solicitors and backup and disaster recovery.

Frequently asked questions

What should a law firm do first when the case management system goes down?

Establish scope before cause. Find out whether it affects one user, one office or everyone, and whether the system is reachable from outside the building. Then confirm who is running the incident, send one clear message to staff, and only then begin fixing or escalating. Separately, someone should identify the deadlines falling due today while the technical work happens.

How long should it take to recover a case management system?

It depends entirely on the setup and on whether recovery has been tested. The important thing is that the firm knows its recovery time and recovery point in advance rather than discovering them during an incident. If the system is hosted by the software vendor, those figures should be obtained from the vendor in writing.

Do we have to report a case management outage to the SRA?

Not automatically. An outage alone is not necessarily reportable. A serious breach of the SRA’s Standards and Regulations must be reported under Rule 3.9 of the Code of Conduct, and separately a reportable personal data breach must reach the ICO within 72 hours of the firm becoming aware. Those are two different duties with two different thresholds, which is why keeping a log from the first minute matters.

Is a cloud-hosted case management system safer than an on-premise one?

Neither is inherently safer. Vendor hosting removes hardware failure and usually improves resilience, but it also removes your ability to fix the problem and makes you dependent on the vendor’s communication. On-premise gives you control and makes recovery your responsibility. Both need a tested plan.

How often should backups be tested?

Regularly, and to a schedule with the results recorded. A backup that has never been restored is an assumption. Database corruption in particular can be copied into backups for a long time before anyone notices, which is why a test restore matters more than a successful backup report.

What is the most common cause of legal software downtime?

Rarely anything exotic. Hosting provider outages, server or storage failure, database corruption after an interrupted update, loss of connectivity where there is no failover, and updates applied without a rollback plan. Ransomware is less common than the coverage suggests but far more serious, and brings reporting duties with it.

Friday Afternoon Fraud: How Conveyancing Firms Get Caught, and What Stops It

A solicitor acting on a property sale was deceived into transferring more than £290,000 to fraudsters. Emails between the firm and its client had been intercepted somewhere between exchange and completion. A last-minute request arrived to change the destination bank account, followed by a reconfirmation email. The funds went the next working day.

The bank raised concerns nearly two weeks later. The solicitor reported it to the police and the SRA three months after that. The Solicitors Disciplinary Tribunal found the solicitor “should have known the circumstances were suspicious and worthy of proper investigation to prevent fraud”, and described the failure to insist on additional verification as particularly troubling. The penalty was a £10,000 fine plus £16,000 in costs.

That case is worth sitting with, because nothing exotic happened. No ransomware, no dramatic breach. Someone read the firm’s email and waited for the right moment.

What payment diversion fraud actually is

Payment diversion fraud, still widely known as Friday afternoon fraud, is when criminals impersonate a solicitor or a bank to persuade someone to send money to the wrong account. The Law Society’s guidance is blunt about the mechanism: emails can be intercepted or diverted, and fraudsters frequently work from a compromised mailbox.

The reason it works on conveyancing rather than other legal work is timing. Completion has a fixed date, large sums move on a deadline, and everyone involved is under pressure to get it done before the weekend. A fraudster reading the mailbox knows exactly when to send the account change, because they have been watching the thread.

The part most firms miss

The email account is usually compromised weeks before anything happens. Nobody notices, because the attacker does not send anything or change the password. They read.

The technical signature is almost always the same: once inside a mailbox, the attacker creates inbox rules that quietly move or delete replies containing words like “invoice”, “bank”, “account” or “payment”. That way the genuine client’s confused reply never reaches the fee-earner, and the fraudulent thread carries on undisturbed on both sides.

If nobody is monitoring for new forwarding or inbox rules on your Microsoft 365 tenant, that activity is invisible until the money has gone.

The warning signs in that case

  • The request came from an email address that was slightly different from the genuine one
  • The bank details changed at the last minute
  • Nobody picked up the phone to the client to confirm it
  • It landed under time pressure, ahead of a Monday completion

Each of those on its own is survivable. Together they are the pattern, and the pattern repeats.

What actually stops it

Process controls

The Law Society’s advice to clients is the same advice firms should be enforcing internally. Give bank details at the start of the matter, in person or over the phone. Make clear that your details will not change. As the guidance puts it, law firms rarely change their bank details, so any announcement that they have should be treated as suspicious until proven otherwise.

If a change request arrives, verify it by calling a number you already hold, never a number contained in the email asking for the change. Never release funds until you are satisfied. A small test payment first is a reasonable belt-and-braces step on a large transfer.

The single most effective rule is the simplest: bank details are never changed on the basis of an email. Write it into your file-opening letter, tell every client at the outset, and make it a disciplinary matter internally rather than a guideline.

Technical controls

Process fails when people are busy. These reduce the chance a mailbox is readable in the first place, and shorten the time it takes to spot one that is.

  • Multi-factor authentication on every account, with no exceptions for partners. Compromise almost always starts with a password.
  • Conditional Access policies so a login from an unexpected country or an unmanaged device is challenged or blocked.
  • Alerting on new inbox and forwarding rules. This is the one most firms do not have, and it is the control that catches this specific attack.
  • Email authentication (SPF, DKIM and DMARC) configured properly, so spoofing your domain is harder. You can check yours with our free DMARC checker.
  • Impersonation protection that flags lookalike domains and display-name spoofing, which is what “an email address slightly different from the genuine one” means in practice.
  • Audit logging retained and readable, so that if something does happen you can establish what was accessed and whose data was involved.

Most of these are already available in the Microsoft 365 licences firms are paying for. They are simply not switched on.

If it happens anyway

Speed matters more than anything else, and the case above shows what delay costs.

  1. Contact the bank immediately and ask them to request that the receiving bank freezes the funds.
  2. Report to Report Fraud, which replaced Action Fraud in December 2025.
  3. Report to the SRA. A serious breach of the SRA’s Standards and Regulations must be reported under Rule 3.9 of the Code of Conduct.
  4. Assess whether personal data was involved. A reportable personal data breach must reach the ICO within 72 hours of you becoming aware of it.
  5. Check whether other matters are affected. If a mailbox was compromised, this transaction is unlikely to be the only one the attacker was reading.

That last point is the one firms forget in the panic. The question is not only “how do we recover this payment”, it is “what else did they see”.

ATS Connection provides IT support for solicitors and law firms, including Microsoft 365 hardening and monitoring for the mailbox activity behind this kind of fraud. If you are working out where you stand more broadly, our guide to SRA IT requirements and our explanation of whether the SRA requires Cyber Essentials are the sensible next reads. For the same scam aimed at any business paying suppliers, see our guide to invoice fraud and business email compromise.

Frequently asked questions

What is Friday afternoon fraud?

Friday afternoon fraud is a form of payment diversion fraud targeting conveyancing. Criminals intercept or monitor email between a firm and its client, then send a last-minute request to change the bank account funds should be sent to, timed to land under deadline pressure before a weekend or a Monday completion.

How do fraudsters get into a law firm’s email?

Most commonly through a stolen or guessed password on an account without multi-factor authentication. Once inside, attackers typically read quietly for weeks and create inbox rules that hide replies mentioning payments or bank details, so neither side notices the conversation has been hijacked.

Can a solicitor be fined for falling victim to this?

Yes. In a case reported by the Law Society, a solicitor who transferred more than £290,000 to fraudsters after a last-minute bank change was fined £10,000 with £16,000 in costs. The tribunal found the circumstances were suspicious enough that they warranted proper investigation before the funds moved.

What is the single most effective control?

A firm-wide rule that bank details are never changed on the basis of an email, verified by a phone call to a number already on file rather than one supplied in the message. Technically, multi-factor authentication on every account combined with alerting on new inbox and forwarding rules catches the underlying compromise.

Who do we report payment diversion fraud to?

Contact your bank immediately to try to freeze the funds, report it to Report Fraud (which replaced Action Fraud), report a serious breach to the SRA under Rule 3.9 of the Code of Conduct, and notify the ICO within 72 hours if personal data was involved.

Does the SRA Require Cyber Essentials? What Law Firms Actually Need to Do

No. The SRA does not require law firms to hold Cyber Essentials certification, and there is no rule that says you must.

What the SRA does require is that you take appropriate steps to protect client data against loss, damage or unauthorised access. That obligation is outcome-based rather than prescriptive: the regulator tells you what must be true, not which certificate to buy. Cyber Essentials is simply the most common way UK firms demonstrate they have met it.

The Law Society recommends Cyber Essentials as one of three routes to demonstrating cyber competence, alongside Lexcel and ISO 27001. It is government-backed and overseen by the National Cyber Security Centre, which is why it carries weight with clients, insurers and panel managers even though no regulator mandates it.

So the honest position is this: not required, widely expected.

What the SRA actually asks of you

Three obligations matter here, and none of them mentions a certificate. We cover these in more detail in our guide to SRA IT requirements for solicitors.

Protect client data. You must take appropriate steps to protect client information against loss, damage or unauthorised access. “Appropriate” scales with your firm. A three-partner practice handling conveyancing is not held to the same technical standard as a 200-fee-earner commercial firm, but both are expected to have thought about it and be able to show their reasoning.

Report serious breaches. A serious breach of the SRA’s Standards and Regulations must be reported to the SRA under Rule 3.9 of the Code of Conduct. Firms sometimes assume this only applies to money. It does not.

Report personal data breaches within 72 hours. Under UK GDPR, a reportable personal data breach must reach the ICO within 72 hours of you first finding out. Seventy-two hours is not long if nobody has agreed in advance who makes that call, who gathers the facts, and who writes the notification.

Where firms get caught out is not usually the technology. It is that nobody can answer “what happened, when, and to whose data” quickly enough to make a decision inside the window.

Where Cyber Essentials fits

Cyber Essentials is a certification against five technical controls. It is deliberately narrow: it does not cover policies, training, or governance. It checks that the basics are actually in place. Our Cyber Essentials certification guide walks through the process in full.

The five controls are:

  1. Boundary firewalls and internet gateways. What sits between your network and the internet, and how it is configured.
  2. Secure configuration. Devices and software set up deliberately, with defaults changed and anything unnecessary removed.
  3. Access control. Who can reach what, administrator rights kept to those who genuinely need them, and accounts removed when people leave.
  4. Malware protection. Endpoint protection in place and actually running everywhere, not just on the machines someone remembered.
  5. Patch management. Operating systems and applications kept up to date within defined timescales.

None of that is exotic. That is rather the point. Cyber Essentials exists because the majority of successful attacks exploit failures in these five areas rather than anything sophisticated.

Cyber Essentials or Cyber Essentials Plus?

Cyber Essentials is a self-assessment. You complete an online questionnaire, it is reviewed, and you certify. There is no independent testing of your systems.

Cyber Essentials Plus covers the same five controls, but an accredited assessor independently tests your systems to verify the answers.

For most law firms, standard Cyber Essentials is the sensible starting point. Move to Plus when a client, insurer or panel requires it, or when you want assurance that what you believe is in place actually is. Both need renewing annually.

Certification is priced in bands based on organisation size, so a small practice pays considerably less than a large one. We break the current figures down in our guide to Cyber Essentials cost. The larger cost for most firms is not the certificate itself. It is the remediation work needed to pass it.

Why law firms fail their first assessment

Across the practices we take through this, the same handful of issues come up.

Unsupported software still in use. A legacy application that only runs on an old operating system, kept alive because replacing it is disruptive. This fails the assessment outright and is a genuine risk regardless.

Administrator rights handed out too widely. Often historical, often to people who no longer need them, sometimes to accounts belonging to people who have left.

Leavers not fully removed. The Windows account is disabled but the Microsoft 365 licence, the case management login and the shared mailbox access are still live.

Patching that is assumed rather than verified. Nobody can produce evidence that updates are being applied within the required timescales, because nothing is reporting on it.

Personal devices in scope and nobody realised. Fee-earners reading matter email on their own phones brings those devices into scope. If they are not managed, that is a problem for the assessment and for the firm.

Most of these are fixable in weeks rather than months, but they are much easier to fix before you start the assessment than during it.

The insurance angle

Cyber insurance can supplement your professional indemnity cover rather than replace it, and insurers may offer reduced PII premiums where a firm can demonstrate its security measures.

This is worth raising with your broker before renewal rather than after. Firms often discover at renewal that they could have evidenced controls they already had, had anyone asked them for it in time.

What to do next

If you are starting from nothing, the order that works is:

  1. Find out what is actually in scope. Devices, cloud services, personal phones with work email, home working setups. Most firms are surprised by the answer.
  2. Fix the five controls properly before you fill in any assessment. Certifying a poorly configured environment is a paperwork exercise, not a security improvement.
  3. Certify, then treat the annual renewal as a genuine review rather than a form-filling job.
  4. Write down who does what if something goes wrong, because the 72-hour clock does not care how good your firewall is. Our guide to what happens when your case management system goes down sets out the first hour in practical terms.

Cyber Essentials will not make your firm secure on its own. What it does is force the basics to be true and give you something defensible to show a client, an insurer or the SRA.

ATS Connection is Cyber Essentials certified and provides IT support for solicitors and law firms, including readiness work and supported Cyber Essentials certification for firms going through it for the first time.

Frequently asked questions

Does the SRA require law firms to have Cyber Essentials?

No. The SRA does not mandate Cyber Essentials. It requires firms to take appropriate steps to protect client data against loss, damage or unauthorised access. Cyber Essentials is one recognised way of demonstrating that, and is recommended by the Law Society alongside Lexcel and ISO 27001.

Is Cyber Essentials worth it for a small law firm?

For most firms, yes. Certification is banded by organisation size so smaller practices pay less, and it forces the five basic technical controls to be genuinely in place rather than assumed. It also gives you something concrete to show clients, panel managers and insurers.

What is the difference between Cyber Essentials and Cyber Essentials Plus?

Cyber Essentials is a self-assessment reviewed by a certification body. Cyber Essentials Plus covers the same five controls but adds independent technical testing by an accredited assessor. Plus is usually driven by a client or insurer requirement.

How long does Cyber Essentials certification last?

Certification is renewed annually. Firms that treat renewal as a genuine review rather than a form-filling exercise tend to find problems before an assessor or an attacker does.

Do we have to report a cyber incident to the SRA?

A serious breach of the SRA’s Standards and Regulations must be reported under Rule 3.9 of the Code of Conduct. Separately, a reportable personal data breach must be notified to the ICO within 72 hours of the firm becoming aware of it. Those are two different duties with two different thresholds.

Will Cyber Essentials reduce our professional indemnity premium?

It may help. Cyber insurance supplements PII rather than replacing it, and insurers may offer reduced premiums where a firm can evidence its security measures. Raise it with your broker before renewal rather than after.

Windows 10 End of Life: What UK Businesses Must Do Before 14 October 2026

The short answer: Windows 10 stopped receiving free security updates on 14 October 2025. Businesses can pay Microsoft for Extended Security Updates (ESU), but the first year of cover ends on 13 October 2026, the price doubles for year two, and joining late means paying for every year you missed. For almost every business the cheaper and safer answer is to upgrade eligible PCs to Windows 11, which is still free, and replace the rest.

Last updated: 30 September 2026. ESU dates and pricing checked against Microsoft’s Extended Security Updates documentation and partner coverage dates on that date.

In this guide

What does Windows 10 end of life mean?

Windows 10 reached its end of support on 14 October 2025. Since then Microsoft has stopped releasing free security updates, bug fixes and technical support for it. The PCs still switch on and work, but every vulnerability discovered since that date stays open unless the device is enrolled in paid Extended Security Updates.

That matters because attackers look for exactly this. Unpatched operating systems are one of the easiest ways into a business network, and the list of known, unfixed Windows 10 flaws grows every month.

What changes on 14 October 2026?

Two deadlines land together in October 2026, and both affect businesses:

DateWhat happensWho it affects
13 October 2026Year one of Windows 10 Extended Security Updates endsBusinesses paying for ESU on Windows 10 PCs
14 October 2026Year two of ESU begins, at double the year-one priceAnyone who wants Windows 10 security updates to continue
13 October 2026Windows 11 version 24H2 stops receiving security updates on Home and ProBusinesses that upgraded to Windows 11 but have not updated since
ESU coverage dates from Microsoft’s partner documentation; Windows 11 dates from Microsoft’s release information.

The last row catches out businesses that think they are finished. Upgrading to Windows 11 is not a one-off: each annual version has its own support end date. Our Windows 11 for business guide lists every version and date.

How much do Windows 10 Extended Security Updates cost?

For businesses, Microsoft charges $61 per device for year one, and the price doubles every year for a maximum of three years. Microsoft publishes business ESU pricing in US dollars only; if you buy through a UK Microsoft partner you will be invoiced in pounds at the partner’s price.

ESU yearCover runsPrice per device (Microsoft list)Cumulative cost if you join this year
Year one15 October 2025 to 13 October 2026$61$61
Year two14 October 2026 to 12 October 2027$122$183 (years one and two)
Year three13 October 2027 to 10 October 2028$244$427 (all three years)
Sources: Microsoft Learn, Extended Security Updates for Windows 10, and Partner Center ESU coverage dates.

The column on the right is the part most businesses miss. Microsoft states that ESUs are cumulative: “If you decide to purchase the program in Year Two, you have to pay for Year One too.” So a PC that joins ESU in October 2026 costs three times the year-one price, just to stay patched until October 2027. Devices must also be running Windows 10 version 22H2 to receive ESU updates.

For comparison, the Windows 11 upgrade itself costs nothing on an eligible PC. On most machines, ESU only makes sense for a device that genuinely cannot be moved yet, such as one running software that has no Windows 11 version.

There is one exception worth knowing: Windows 10 virtual machines in Windows 365 and Azure Virtual Desktop get ESU at no extra cost, and Windows 10 PCs connecting to Windows 365 Cloud PCs are covered while the subscription is active.

What are your options?

Every Windows 10 PC in your business falls into one of three groups:

OptionWhen it fitsCostWatch out for
Upgrade to Windows 11The PC meets Microsoft’s requirementsFree licence; time to plan and testCheck business applications and printers first
Replace the PCThe PC fails the requirements or is near the end of its lifeNew hardwareBuy to a sensible spec so it lasts five years
Pay for ESUThe PC cannot move yet for a specific reasonDoubles each year and is cumulativeA bridge, not a plan; ends in October 2028

Microsoft confirms the upgrade from Windows 10 to Windows 11 is free on eligible PCs. Your data, applications and settings normally carry across, although we always recommend testing business-critical software on a pilot machine first.

Can your PCs run Windows 11?

A PC needs to meet all of Microsoft’s Windows 11 requirements:

  • A compatible 64-bit processor on Microsoft’s supported list. For the current versions of Windows 11 that broadly means Intel 8th generation Core or AMD Ryzen 3000 series and newer.
  • At least 4GB of RAM and 64GB of storage.
  • UEFI firmware with Secure Boot capability.
  • Trusted Platform Module (TPM) 2.0.
  • A DirectX 12 compatible graphics card with a WDDM 2.0 driver.

Many business PCs bought since around 2018 pass, and sometimes the only blocker is TPM or Secure Boot switched off in the firmware settings, which is a quick fix. Microsoft’s free PC Health Check app will tell you for a single machine. For a whole office, your IT provider can pull a report across every device at once.

Treat the minimums as a floor. For business use we recommend at least 16GB of RAM and a solid-state drive, so a PC that only just passes may still be worth replacing.

What are the risks of staying on Windows 10?

Staying on Windows 10 without ESU creates problems well beyond the PC itself:

  • Unpatched vulnerabilities. Every security flaw found since October 2025 stays open, and attackers actively scan for unsupported systems.
  • Cyber Essentials. The current requirements say unsupported software must be removed or isolated from the internet in a separate sub-set. A Windows 10 PC without ESU is unsupported software, so it will fail the assessment if it is in scope. See our Cyber Essentials requirements guide.
  • Cyber insurance. Insurers commonly ask whether your systems are supported and patched. An unsupported operating system can make a claim harder, so check your policy wording.
  • Software support. Microsoft 365 Apps still receive security updates on Windows 10 until 10 October 2028, but Microsoft treats Windows 10 as unsupported for them and feature updates end with Version 2608. Other vendors are withdrawing support too.

How should a business plan the move?

With the ESU price about to double, the aim is to have as few Windows 10 PCs as possible left by 13 October 2026, and a firm date for the rest. A practical plan:

  1. Audit every device: its age, processor, TPM, RAM, disk and whether it is still on Windows 10.
  2. Sort into upgrade, replace or bridge. Only put a device on ESU if there is a specific reason it cannot move yet, and write that reason down.
  3. Test first: line-of-business software, printers, scanners and VPN on one or two pilot machines.
  4. Back up anything stored locally, and make sure OneDrive is syncing desktops and documents.
  5. Roll out in waves, out of hours where possible, so nobody loses a working day.
  6. Harden as you go: turn on BitLocker, check multi-factor authentication and bring devices under central management.
  7. Keep Windows 11 current, so PCs move to each new version before the old one loses support.

ATS Connection handles Windows 10 to 11 migrations for businesses across Sussex and the UK, from the device audit to the rollout, as part of our managed IT services or as a one-off IT consultancy project. If you are not sure where you stand, our free IT review covers your devices, network and Microsoft 365, and tells you plainly what to fix first. You can also call us on 01903 255 159.

Frequently asked questions

Is Windows 10 still supported?

No. Windows 10 reached end of support on 14 October 2025. It only receives security updates on devices enrolled in Microsoft’s paid Extended Security Updates programme.

When does Windows 10 ESU year one end?

Year one of Extended Security Updates covers 15 October 2025 to 13 October 2026. Year two runs from 14 October 2026 to 12 October 2027, and year three ends on 10 October 2028.

How much does Windows 10 ESU cost for a business?

Microsoft lists business ESU at $61 per device for year one, doubling each year to $122 and then $244. It is cumulative, so a device that joins in year two costs $183 in total. Microsoft publishes these prices in US dollars; UK partners invoice in pounds.

Can I still upgrade from Windows 10 to Windows 11 for free?

Yes. Microsoft states that the upgrade from Windows 10 to Windows 11 is free on eligible PCs.

Will Windows 10 pass Cyber Essentials?

Not without Extended Security Updates. Cyber Essentials requires software in scope to be supported by its vendor, so an unsupported Windows 10 PC must be upgraded, covered by ESU, removed, or isolated from the internet in a separate sub-set.

What happens if I do nothing?

The PCs keep working, but they receive no security fixes, which makes them an easy target, can cause a Cyber Essentials failure and may complicate an insurance claim. The longer you wait, the more ESU costs if you need it.

Does Microsoft 365 still work on Windows 10?

Yes, for now. Microsoft 365 Apps receive security updates on Windows 10 until 10 October 2028, but Microsoft treats Windows 10 as unsupported for them and feature updates end with Version 2608.

Sources