Ransomware-Proof Backup: 7 Strategies for Enterprise IT Teams

This article describes how modern ransomware targets enterprise backup systems and presents a ransomware-proof backup approach based on immutability, isolation, and verified recovery. It details attacker techniques against backups (shadow copy deletion, disabling backup agents, credential harvesting), explains why traditional backups fail, and provides seven practical strategies—such as a 3-2-1-1-0 rule, immutable and air-gapped storage, zero-trust for backup, segmentation, automated recovery testing, anomaly monitoring, and credential hardening—to mitigate the risk.