Backup verification failure is emerging as a critical vulnerability for organisations facing ransomware threats. Recent research indicates that most IT professionals are not fully confident in their ability to recover data following an attack, due to inadequate testing and verification of backups. This gap between perceived and actual resilience could have devastating consequences if left unaddressed.
Understanding the scope of backup verification failure
In mid-2026, a Kaseya-sponsored survey conducted by 1105 Media assessed backup and recovery confidence levels among 200 IT professionals. The survey found that just 15 percent of respondents felt ‘very confident’ they could restore their systems after a ransomware incident without data loss. By contrast, 53 percent admitted they were no more than ‘somewhat confident’ in their organisation’s ability to fully recover, citing only ‘limited testing’ of their backups as the main reason for uncertainty.
These findings reveal a widespread backup verification failure across both IT departments and managed service providers (MSPs). While most organisations perform regular backup tasks, the survey highlights that these backups are often not rigorously tested for recoverability. The risk: when disaster strikes, backup files may be incomplete, corrupted or otherwise unusable, leaving businesses unable to restore critical data or services.
- Only 15 percent of surveyed IT pros highly confident in backup recovery
- 53 percent reported limited or inconsistent backup testing
- Many reliance on manual or screenshot-based verification methods
How backup verification failure happens
Backup procedures often focus on copying data and logging the process as ‘complete.’ However, this only ensures data is stored somewhere, not that it can actually be recovered. Verification is the crucial process of confirming that a backup is complete, uncorrupted and restorable in a real-world emergency. Without this step, backups may offer a false sense of security.
Manual methods miss key issues
Many organisations still use intermittent manual checks or rely on reviewing screenshots to ‘prove’ successful backups. These methods are error-prone and time-consuming, and they do not scale with the complexity of modern IT estates. False negatives can occur when failures are overlooked, while false positives can allow critical issues to go undetected. As a result, businesses may discover too late that their backups do not work when urgently needed.
Brent Torre, GM of cyber resilience at Kaseya, emphasised that backup ‘isn’t done and entrustable until you’ve gone in and made sure that the application actually works and can be brought back to the recovery environment.’ Yet the survey shows that few organisations conduct such comprehensive tests regularly, citing resource and time constraints.
Growing complexity, increased risk
Today’s IT environments are more dynamic and distributed, spanning on-premise, cloud and hybrid systems. Static verification methods that once sufficed are increasingly inadequate. As infrastructure grows, so does the probability of a backup verification failure unless organisations adopt automated and continuous restore testing.
The Kaseya survey found that even MSPs, who are responsible for protecting client data, struggle to prove their backups are truly restorable. This increases the risk to their clients and exposes them to reputational damage and regulatory consequences if data cannot be recovered after an attack.
- Manual testing is slow and unreliable
- Modern IT architectures demand automated verification
- Lack of verification increases the risk of undetected backup failures
Consequences of insufficient backup verification
The central risk highlighted by the survey is that backup verification failure can lead to catastrophic data loss. A backup that cannot be restored is functionally equivalent to no backup at all. As ransomware attacks and destructive events become more frequent, the ability to reliably restore systems is mission-critical.
Organisations that discover backup problems during a crisis may face extended downtime, regulatory penalties and loss of customer trust. The survey’s results suggest that without changes to verification practices, many businesses remain exposed to these outcomes despite investing in backup solutions.
- Data may be lost permanently if backups are not restorable
- Business continuity and reputation are at stake
- Regulatory non-compliance may result from failed recoveries
Why backup verification failure matters now
The increasing pace and sophistication of ransomware attacks mean that reliable backup and recovery is more important than ever. The Kaseya survey makes clear that backup verification failure is not just a technical detail, but a major business risk that affects both IT providers and their clients.
Essential actions for organisations
To address backup verification failure, IT teams should prioritise:
- Automated, regular restore testing of all critical workloads
- Replacing manual verification with systems that provide clear, actionable evidence of recoverability
- Reviewing backup and disaster recovery plans to ensure alignment with current infrastructure and threat models
By adopting these measures, organisations can reduce the risk of failed recoveries and improve their overall resilience against ransomware and other cyber threats.
Originally reported by theregister.com.
