For how long will the audit records be retained with a Microsoft 365 E3 subscription when using the unified audit log and Basic Audit?

With a Microsoft 365 E3 subscription, the unified audit log retains audit records for a duration of 90 days when using the Basic Audit. This retention period allows organizations to have access to a substantial amount of historical data for security and compliance purposes.

The 90-day retention period is essential for monitoring user activities and changes within the organization, enabling security teams to conduct investigations and ensure compliance with internal policies and regulatory requirements. If more extended retention of audit data is needed, organizations can consider upgrading to a Microsoft 365 E5 subscription, which offers a longer retention period for audit logs as part of its advanced audit capabilities.