Source: All CISA Advisories Author: CISA URL: https://www.cisa.gov/news-events/alerts/2025/01/15/cisa-releases-microsoft-expanded-cloud-logs-implementation-playbook

ONE SENTENCE SUMMARY:

CISA’s playbook assists organizations in utilizing Microsoft Purview Audit logs for enhanced cybersecurity and compliance investigations.

MAIN POINTS:

1. CISA released a playbook for utilizing Microsoft Purview Audit logs.
2. The guide helps detect advanced intrusion techniques effectively.
3. It includes methodologies for analyzing expanded cloud logs.
4. Newly introduced logs support forensic and compliance investigations.
5. Critical events tracked include accessed mail items and user searches.
6. Instructions for integrating logs with Microsoft Sentinel and Splunk SIEM.
7. Discusses significant events in Microsoft 365 services, like Teams.
8. Encourages organizations to operationalize these logs for cybersecurity.
9. Aimed at empowering technical personnel in security operations.
10. Promotes proactive defense against potential cyber threats.

TAKEAWAYS:

1. The playbook enhances cybersecurity operations using Microsoft Purview logs.
2. Understanding log events is crucial for effective incident response.
3. Integration with SIEM systems is essential for comprehensive monitoring.
4. Awareness of M365 events can improve overall security posture.
5. Organizations should actively implement the playbook’s recommendations.