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Some users may experience delays in viewing updated device information in Microsoft Defender

Microsoft Defender XDR DZ1530191

Users may experience delays in viewing updated device information in Microsoft Defender.

Status
Service degradation
Feature
Portal
Region
Europe
Started
Oct 29, 2026, 11:57 CET
Duration
4 h 57 min
Last update
Oct 29, 2026, 13:33 CET
Next update
Oct 29, 2026, 17:30 CET

Current status

We've traced the issue to an upstream component responsible for transferring device information for processing and determined that the affected data isn't progressing through the pipeline as expected. We're working to resolve the underlying issue, after which we expect to recover and reprocess the affected data.

More info

Affected users may additionally experience Advanced Hunting tables display outdated device information due to delays in data processing.

Scope of impact

Impact is specific to some users located in North Europe attempting to view updated device information in Microsoft Defender.

Timeline

Every update Microsoft posted for this issue, newest first.

  1. Oct 29, 2026, 13:33 CET

    We've traced the issue to an upstream component responsible for transferring device information for processing and determined that the affected data isn't progressing through the pipeline as expected. We're working to resolve the underlying issue, after which we expect to recover and reprocess the affected data.

  2. Oct 29, 2026, 12:00 CET

    We've identified an issue affecting the processing of device information and our investigation indicates that a component responsible for processing this information may not be functioning as expected. We're continuing to investigate the underlying cause of impact and determine the appropriate mitigation strategy to restore normal processing.

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To see whether your own tenant is affected, check Service health in the Microsoft 365 admin center. Only a backup outside Microsoft protects against data loss, and only a tested break-glass account against locked-out admins. We set up both in fixed-scope sprints.

Source: Microsoft Graph, Service Communications API. This is the view of a Swiss Microsoft 365 tenant: services not licensed there are missing, and individual issues may affect your tenant differently. Microsoft names the region only in the issue text. The Switzerland view shows issues for Switzerland, for Europe in general and those without a region, but not issues that only name other countries such as Germany or the UK. This page is not provided by Microsoft.