SHD / MC Checker

[serviceRestored] DZ553019 | Microsoft 365 Defender | Admins may have been unable to view recent URL data in Microsoft Defender for Endpoint advanced hunting tables



DZ553019 | Microsoft 365 Defender | Admins may have been unable to view recent URL data in Microsoft Defender for Endpoint advanced hunting tables

Status serviceRestored
Classification advisory
User Impact Admins may have been unable to view recent URL data in Microsoft Defender for Endpoint advanced hunting tables.
Last Updated 05/12/2023 08:49:23
Start Time 05/10/2023 10:00:00
End Time 05/12/2023 07:30:00
Latest Message Title: Admins may have been unable to view recent URL data in Microsoft Defender for Endpoint advanced hunting tables

User impact: Admins may have been unable to view recent URL data in Microsoft Defender for Endpoint advanced hunting tables.

Final status: We’ve confirmed the previously unretrievable URL data has been restored, and after an extended period of monitoring, we can confirm that impact has been fully remediated. 

Scope of impact: Impact was specific to any admin who was served through the affected infrastructure that was attempting to view up-to-date URL data in Microsoft Defender for Endpoint advanced hunting tables.

Start time: Wednesday, May 10, 2023, at 10:00 AM UTC

End time: Friday, May 12, 2023, at 7:30 AM UTC

Root cause: A recent update, intended to enhance our service’s functionality, had inadvertently introduced a deficiency in the portion of code responsible for recording URL data in advanced hunting tables.

Next steps:
– We’re reviewing our update procedures to better identify similar issues during our development and testing cycles.

This is the final update for the event.