Microsoft 365: Backup Activity Logs

🚨 The Signal: New activity logs for Microsoft 365 backup policies and restore tasks are now available. This enhances auditability and monitoring of data protection operations, improving incident response and compliance verification.

The Impact

Security teams and auditors are affected, gaining enhanced visibility into backup activities to reduce data loss risk.

  • Security Teams: Better visibility into backup failures reduces data loss risk.
  • Auditors: Clearer audit trails for data recovery processes improve compliance.
  • Incident Responders: Faster troubleshooting of restore issues minimises downtime.
  • Compliance Officers: Enhanced reporting on backup integrity supports regulatory needs.

The Action

  1. Review Microsoft 365 backup activity logs for anomalous policy changes or restore failures.
  2. Integrate backup activity logs into existing SIEM solutions for centralised monitoring.
  3. Establish alerts for critical backup and restore events, such as policy deletions or failed restores.
  4. Update incident response playbooks to incorporate new backup log data for recovery scenarios.

Impact: medium · Workload: Microsoft Purview · Essential Eight: Regular Backups · ISM: ISM-1511, ISM-1515, ISM-1705, ISM-1706, ISM-1707, ISM-1708, ISM-1810, ISM-1811, ISM-1812, ISM-1813, ISM-1814