3-2-1-1-0 Backup Rule: Modernizing Protocols for 2026 Cyber-Resilience
The 3-2-1-1-0 backup rule represents the architecture shift from legacy redundancy to adversarial resilience. The traditional 3-2-1 strategy was designed to solve for hardware failure — the 3-2-1-1-0 extension is engineered to solve for adversarial intent. In a landscape where 94% of ransomware attacks now specifically target the backup server, a “copy” is no longer…
