Designing Immutable Backup Solutions to Resist Ransomware
Security Boulevard, Monday, July 27th, 2026
Guide for UK SMEs on using immutable backups as a critical recovery control against ransomware attacks.
Immutable backups prevent attackers from deleting or tampering with restore points, providing a reliable recovery path when ransomware compromises production systems.
The article emphasizes treating backup administration as a privileged function with separate identities, MFA, and controlled access. Key recommendations include implementing retention locks before data is written, maintaining tiered copies with both immutable and air-gapped protection, and conducting regular restore testing under incident conditions.
The design must also harden the backup control plane, monitor job success, and align retention periods to realistic detection windows and business recovery objectives.