Microsoft Defender for Office 365: Auto-Remediation of Malicious Similarity Clusters in AIR

🚨 The Signal: Microsoft Defender for Office 365 now automatically remediates email threats identified as 'malicious similarity clusters.' This reduces manual security operations, speeding up threat response and freeing up SOC teams.

The Impact

Security operations teams are affected by automated threat remediation, reducing manual effort and improving response times.

• Security Operations: Reduced manual effort in remediating email threats.
• Security Operations: Faster response to malicious email clusters.
• Security Operations: More time to focus on complex, high-priority threats.

The Action

1. Review existing Automated Investigation and Response (AIR) policies in Microsoft Defender portal.
2. Verify auto-remediation settings for email threats are configured as desired.
3. Monitor AIR investigation logs for automatically remediated malicious similarity clusters.

Domain: Defender · Impact: medium · Workload: Microsoft Defender