Ransomware Resilience on Azure: A Layered, Zero Trust Blueprint

Reduce blast radius, protect backups, and practice recovery.

Assume Breach. Limit Impact.

Harden identity and endpoints first, then segment networks and protect data. The aim is to turn a potential enterprise-wide event into a confined incident.

Key Controls

• MFA everywhere; block legacy auth
  • ASR rules, tamper protection, attack surface reduction
  • Immutable backups: Azure Backup with soft delete and multi-user authorization
  • Least privilege with PIM; admin workstations
  • Micro-segmentation with NSGs and Private Link
  • Email protections: Safe Links/Attachments

Practice the Bad Day

Tabletop tests and recovery drills reveal gaps. Measure RTO/RPO, reimage speed, and how quickly you can rotate keys/credentials and re-establish trust.

How Azure Crew Can Help

Azure Crew can run a ransomware readiness assessment and implement the controls above—including backup hardening and recovery runbooks—so you can pass insurer questionnaires and reduce premiums.