<30 min Response

20+ Years Experience

Cyber Essentials Certified

Remote SOS Support

Backup & Disaster Recovery Services for Modern Businesses

Reduce downtime, build ransomware resilience and recover with confidence. ATS Connection delivers immutable Microsoft 365 backup, cloud-first protection and tested disaster recovery, managed end-to-end by our engineers.

Immutable & testedBackup posture

MFA + Conditional AccessMicrosoft 365 secured

Recovery first

Operational approach

20+

Years operating as a UK MSP

98%

First-contact resolution

24/7

Backup monitoring

Microsoft does not fully back up your Microsoft 365 data

Microsoft operates a shared responsibility model: they keep the platform running – your data, retention and recovery is yours to protect. Native retention windows, recycle bins and litigation holds are not a true backup. ATS deploys independent, immutable third-party backup of Exchange, SharePoint, OneDrive and Teams as a standard part of every managed service.

  • Independent platform, separation of fate from your tenant
  • Immutable copies, protected from ransomware and tampering
  • Granular restore, mailboxes, sites, channels, items
  • Recovery rehearsed, not assumed

MFA enforced firm-wide

Phishing-resistant MFA on every account, every device, including partners and external auditors.

Conditional Access policies

Risk-based controls that block sign-ins from untrusted devices, locations and legacy protocols.

Advanced email defence

Link rewriting, attachment detonation and impersonation protection tuned for finance workflows.

Identity & tenant monitoring

Continuous alerting on identity risk, configuration drift and anomalous behaviour across your tenant.

Managed EDR / MDR

24/7 detection and response on every endpoint, with documented escalation paths and incident reporting.

Secure remote access

Zero-trust access for hybrid teams, with conditional policies replacing legacy VPNs and standing privileges.

Zero-trust remote access

Intune-managed devices, Conditional Access and modern remote access for fee-earners working with client systems.

Independent M365 backup

Immutable, third-party backups of Exchange, SharePoint, OneDrive and Teams, beyond Microsoft’s native retention.

Audit-ready & insurer-ready

Environments built and maintained against Cyber Essentials and the security posture insurers and clients now expect.

A complete disaster recovery strategy, not just backup software

Backup software on its own is not a strategy. ATS combines protection, monitoring, recovery testing and clear escalation procedures into one calm, documented operating model, so when something goes wrong, the response is already rehearsed.

  • Documented recovery priorities and continuity plans
  • Clear incident escalation paths to senior engineers
  • Quarterly recovery testing and documentation review
  • Strategic guidance from your named account manager

Assess & Design

Independent review of your current backup, retention, recovery objectives, risks and disaster recovery posture, benchmarked against best practice and your sector.

Protect & Harden

Deploy immutable, independent backup across Microsoft 365, servers, virtual machines and endpoints, with documented retention and access controls.

Monitor & alert

24/7 monitoring of backup jobs, success rates and storage health. Failures are triaged by named UK engineers, not silently ignored.

Test & rehearse

Recovery testing, documented DR procedures and quarterly reviews so the plan stays accurate as your business changes.

Full-estate backup, managed as
one service

From Microsoft 365 to servers, virtual machines and cloud workloads, ATS protects your
business under a single, governed backup standard, with one accountable partner.

Microsoft 365

Independent immutable backup of Exchange, SharePoint, OneDrive and Teams, including granular item-level recovery.

Servers

Physical and virtual server backup with image-based recovery, application-aware snapshots and offsite replication.

Virtual machines

Hyper-V and VMware protection with fast VM restore, instant recovery and tested failover procedures.

Cloud platforms

Azure workloads, SaaS data and hybrid environments protected under one managed backup standard.

SharePoint & OneDrive

Granular site, library and file-level recovery with permissions and version history preserved.

Microsoft Teams

Conversations, channels, files and structure, the part most M365 backups quietly miss.

Laptops & Devices

Optional endpoint backup for critical user data on Windows and Mac laptops, especially for remote teams.

Critical files

File shares, document libraries and project data with retention aligned to your compliance position.

Business applications

Line-of-business databases and apps protected with application-aware backup and tested recovery procedures.

The backup risks businesses don’t
realise they have

Most backup problems aren’t discovered until the moment recovery is needed. ATS quietly
closes the gaps that default platforms and legacy backup tools leave open.

Microsoft 365 retention limits

Native retention windows, recycle bins and litigation holds are not a true backup and businesses regularly discover this only after an incident.

Ransomware Encryption

Modern ransomware actively targets backup systems first. Without immutable, separated copies, your last line of defence becomes the attacker.

Accidental deletion

Files, sites and mailboxes deleted in error and discovered weeks later well beyond default M365 recovery windows.

Insider threats

Departing staff, compromised admin accounts and malicious actions can quietly remove critical data without proper protection.

Failed backups

Backup jobs that have been silently failing for weeks or months only discovered when recovery is needed.

Untested recovery

Backups that have never been restored aren’t backups they’re assumptions. Most businesses only find out at the worst possible time.

From a ransomware incident to full recovery in under a working day

A 75-user professional services firm was hit by a ransomware attack that encrypted critical file shares and attempted to reach their backup environment. Because ATS had previously deployed immutable backup, separated their recovery platform from the production tenant and rehearsed restores quarterly, the attack stopped where the encryption ended.

ATS contained the incident, isolated affected systems, restored Microsoft 365 mailboxes, SharePoint sites and key servers from immutable copies and had the business operational again before end of day, with zero ransom paid and a clear, documented post-incident report.

< 1 day

Full recovery time

£0

ransom paid

100%

Critical data restored

A complete disaster recovery strategy, not just backup software

Immutable backup, monitored daily and tested regularly,
delivered by senior UK engineers who actually answer the phone.

Recovery-first mindset

We design backwards from the recovery you need. not forwards from the backup software we sell.

Tested recovery

We rehearse restores so we know and you know recovery actually works before it’s needed.

UK-based engineers

All engineering in-house, in the UK. Named engineers and account managers who genuinely know your environment.

Security-first environments

Immutable storage, separated platforms and hardened access controls aligned to Cyber Essentials.

Proactive monitoring

24/7 monitoring of backup jobs and storage health. Failures are triaged, not silently logged.

Long-term partnership

The majority of our clients have been with ATS for 5+ years a relationship, not a renewal.

Strategic guidance

Quarterly reviews of your recovery posture, retention and DR plan aligned to your business and risk appetite.

Operational accountability

Documented standards, change control, governance and clear escalation paths to senior engineers.

Free • No obligation • Senior engineer • 30 minutes

Book a confidential IT & cyber security review

A senior, no-obligation conversation with one of our principal engineers.
Focused on the operational, security and continuity questions your accountancy
practice is being asked by clients, regulators and insurers.

designed for accountancy firms

  • Benchmark your Microsoft 365 security
    & governance
  • Identify cyber risks before clients
    or insurers raise them
  • Review backup, recovery and business
    continuity readiness
  • Map a clear, costed IT & security roadmap

What clients say

Rated 5.0 on Google by Sussex businesses.

★★★★★

We have been with ATS Connection for years and they have always been reliable. Fast, efficient, and they really know their stuff.

MichelleNorthgate PropertiesGoogle ★ 5.0

★★★★★

Their proactive IT support has saved us a lot of headaches. We can focus on growing our business knowing our IT is sorted.

VickyCallatech EngineeringGoogle ★ 5.0

★★★★★

ATS Connection has been a huge help. Whenever we run into IT issues, they are always there to resolve things quickly.

NicholasNorfolk Arms HotelGoogle ★ 5.0

FAQ

Common questions about backup & disaster recovery

Yes. Microsoft operates a shared responsibility model: they protect the platform, you’re responsible for your data. Native retention windows, recycle bins and litigation holds are not a true backup. Independent, immutable third-party backup is recommended for any business relying on Microsoft 365 for email, SharePoint, OneDrive or Teams.

Ransomware recovery depends on having immutable, separated backups that the attacker cannot reach or encrypt. ATS contains the incident, isolates affected systems, restores from clean immutable copies and provides a documented post-incident report, ideally avoiding any ransom payment.

Immutable backup means the backup data cannot be changed, encrypted or deleted, not even by an administrator, for a defined retention period. It is the single most important defence against modern ransomware, which actively targets backup systems first.

Recovery time depends on the workload and recovery objective. Granular Microsoft 365 restores are typically minutes. Server and VM recovery can be measured in hours with tested image-based recovery. Full disaster recovery time is defined in your DR plan and rehearsed regularly.

ATS monitors every backup job 24/7. Failures are alerted immediately, triaged by named UK engineers and resolved, not silently logged. We also report on backup health as part of every quarterly review so trends are visible long before they become risks.

ATS partners with leading enterprise-grade backup platforms for Microsoft 365 and infrastructure protection, chosen for immutability, independence, recovery performance and operational maturity. We’ll recommend the right platform based on your environment, sector and recovery objectives.

Disaster recovery planning is the documented process for restoring business operations after a major incident, covering recovery priorities, RTO/RPO targets, escalation, communication and tested recovery procedures. ATS builds, maintains and rehearses DR plans as part of our managed service.


Yes, and we recommend it. Recovery testing is a standard part of the ATS managed backup service, with rehearsed restores, documented results and quarterly reviews. Untested backups are assumptions, not protection.