Microsoft Defender portal outage disrupts threat hunting alerts

Key Points:

• Microsoft Defender portal is experiencing an outage due to high CPU utilization, affecting access to various functionalities including threat-hunting alerts.
• The incident has disrupted services for customers, leading to missing alerts and devices not appearing in the portal. Mitigation measures have been applied, and some recovery has been reported.
• Organizations are advised to monitor their Defender portal access and report any ongoing issues as Microsoft continues to analyze the situation.

Technical Details: The outage was triggered by a spike in traffic that caused high CPU utilization on components essential for the Microsoft Defender portal's functionality. Microsoft is actively working on resolving the issue and has implemented measures to increase processing throughput.

MITRE ATT&CK Techniques: None mentioned

IOCs Mentioned: None mentioned