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Description

Create an activity log alert for the Delete Public IP Address event.

Rationale​

Monitoring for Delete Public IP Address events gives insight into network access changes and may reduce the time it takes to detect suspicious activity.

Impact​

There will be a substantial increase in log size if there are a large number of administrative actions on a server.

Audit​

This policy flags an Azure Subscription as INCOMPLIANT if it does not have an enabled related Azure Activity Log Alert scoped to the subscription whose Condition JSON filters on the Administrative category and the Microsoft.Network/publicIPAddresses/delete operation.

Default Value​

By default, no monitoring alerts are created or active.

References​

  1. https://azure.microsoft.com/en-us/updates?id=classic-alerting-monitoring-retirement
  2. https://learn.microsoft.com/en-us/azure/azure-monitor/alerts/alerts-create-activity-log-alert-rule
  3. https://learn.microsoft.com/en-us/rest/api/monitor/activity-log-alerts/create-or-update
  4. https://learn.microsoft.com/en-us/rest/api/monitor/activity-log-alerts/list-by-subscription-id
  5. https://learn.microsoft.com/en-us/security/benchmark/azure/mcsb-logging-threat-detection#lt-3-enable-logging-for-security-investigation