Title: Admins may be unable to view detonation details within the Microsoft Defender for Office 365 email entity page
User impact: Admins may be unable to view detonation details within the Microsoft Defender for Office 365 email entity page.
Current status: We’ve confirmed that our fix to address the underlying issue has completed deployment and new and current detonation details are no longer affected. However, detonation details from the period of impact may still be missing, and we’re preparing to replay the data to restore these and fully remediate the issue.
Scope of impact: This issue may impact any admin who uses the Microsoft Defender for Office 365 email entity page to view detonation details.
Start time: Friday, October 6, 2023, at 12:00 AM UTC
Root cause: A recent change caused a Dynamic-Link Library (DLL) system package, which our systems rely on to output detonation details, to be missing. Since the DLL is missing, the service fails to output detonation details within the Microsoft Defender for Office 365 email entity page.
Next update by: Monday, October 30, 2023, at 1:00 PM UTC
