Field notes on backup strategy, ransomware resilience, and recovery — from the BackupSec team.
Why the 3-2-1-1-0 backup rule no longer holds in 2026 — and how BackupSec's 5-3-2-1-1-0 Fibonacci Rule adds five security principles beneath it.
by BackupSec Team
A Sysdig-documented campaign shows an LLM agent running a ransomware attack chain with no step-by-step human direction, self-correcting failures in 31 seconds. What that compression means for backup architecture.
The classic 3-2-1 rule grew two digits for a reason. Here is what the extra 1 and 0 buy you.
Immutability, isolation, and tested recovery are the three pillars that keep backups useful when ransomware hits.
For the third year running, unpatched vulnerabilities are ransomware's top root cause (32% in 2025). Why prevention can't close the gap — and what does.
Sophos found the average ransomware victim had 2.7 contributing failures. Why single-control defense is dead and backup is the compensating control.
Backup recovery use fell from 73% to 53% in Sophos's 2025 ransomware report — a four-year low. Why backup confidence is now the metric that matters.
