Activity log alert should exist for Delete NSG

MEDIUM

Ensures an activity log alert is configured to detect deletion of entire Network Security Groups.

What does this mean?

This recommendation ensures Activity Log alerts trigger when a Network Security Group is deleted entirely. NSG deletion removes all associated security rules, potentially leaving resources completely unprotected at the network level.

Benefits of implementation

  • Detects removal of network security boundaries
  • Critical for preventing accidental exposure of resources
  • Required for security monitoring compliance

Drawbacks and considerations

  • Alert fires for both intentional and accidental deletions
  • Requires operational response procedures
  • Needs to be combined with other network monitoring

Implementation

Implementation guidance coming soon.

Related recommendations will be linked here.

Frameworks

Details
Risk Level
MEDIUM
Category
Logging & Monitoring
Azure Resource

Frameworks
1 frameworks
Last updated
2026-02-12