Users may be intermittently unable to access the quarantine and submissions page within Microsoft Defender Air

Title: Users may be intermittently unable to access the quarantine and submissions page within Microsoft Defender Air

User impact: Users may be intermittently unable to access the quarantine and submissions page within Microsoft Defender Air.

Current status: Our operation to reallocate service load across the affected infrastructure is progressing as expected. We anticipate that the process will be complete by our next scheduled update, at which time we’ll test to confirm that impact is remediated.

Scope of impact: Any user attempting to access the quarantine and submissions page within Microsoft Defender Air may be intermittently impacted.

Start time: Tuesday, January 23, 2024, at 8:00 AM UTC

Estimated time to resolve: We anticipate that the operation to reallocate service load across the affected infrastructure will be complete, remediating impact Friday, March 22, 2024, at 7:00 PM UTC.

Root cause: A component of Microsoft Defender Air infrastructure responsible for facilitating access to the quarantine and submissions pages is encountering an unusual increase in traffic that’s causing the component to operate below expected performance thresholds, resulting in impact.

Next update by: Friday, March 22, 2024, at 7:00 PM UTC