Many organizations feel protected because backups run every night. But modern ransomware is designed to destroy backup systems first, and a handful of common mistakes are usually what turns an incident into a disaster.
The seven mistakes — and how to fix them
1. No immutable backups
With administrative access, attackers can delete backup copies, encrypt backup data or corrupt retention policies.
2. No isolated recovery environment
Keeping backups on the same network as production creates a single point of failure that ransomware can reach laterally.
3. Backups are never validated
Backups may contain dormant malware, be silently corrupted or simply fail to restore.
4. Relying on traditional disaster recovery
DR plans are usually built for outages, not cyberattacks, and can restore infected systems.
5. Weak access controls
Backup consoles often have excessive privileges and single-factor logins, giving attackers the keys to delete everything.
6. Assuming the cloud provider protects your data
Under the shared-responsibility model, protecting your data — including SaaS data — is your job. Misconfigurations can also expose backups.
7. Never assessing resilience
Without an objective view of recovery readiness, gaps stay hidden until an incident exposes them.
Why these mistakes matter
Attacks are targeted, automated and built to evade detection. Organizations that close these gaps recover faster, avoid paying ransoms and keep the trust of customers and regulators.
Key takeaways
- Immutability and isolation are now baseline requirements.
- Access to backup systems needs the strongest controls you have.
- Cloud and SaaS data still need your own backups.
- Regular testing turns assumptions into evidence.
Find your hidden backup risks
An independent assessment shows which of these mistakes apply to you and what to fix first.
