March 18, 2026
Backups, MFA, and Network Segmentation That Actually Reduce Blast Radius
Ransomware resilience is about speed and containment, not perfect prevention. Teams that recover quickly have already preplanned backup integrity checks, identity hardening, and segmented high-value systems.
Core Controls To Implement First
- Immutable backups: Keep at least one backup copy offline or write-protected and test restores monthly.
- MFA on all privileged access: Prioritize admin accounts, VPN, remote tools, and cloud control planes.
- Segment critical services: Separate finance, identity, and production systems from general user segments.
- Endpoint protection and patch SLAs: Define deadlines for critical security updates and enforce compliance reporting.
- Privileged access management: Use just-in-time admin elevation and remove standing admin rights where possible.
24-Hour Incident Checklist
- Hour 0-2: Isolate affected hosts and disable compromised credentials.
- Hour 2-6: Confirm scope, preserve logs, and activate legal/insurance notification workflow.
- Hour 6-12: Validate clean backups and prioritize restoration sequence by business impact.
- Hour 12-24: Restore core systems in stages and publish stakeholder status updates.
Executive metric: Track recovery time objective by system tier. If your top revenue system cannot be restored in the target window, readiness is incomplete regardless of tooling spend.
Schedule a Ransomware Readiness Assessment