Cyderes incident

Azure Front Door (AFD) issues resulting in a loss of availability of some services.

Major Resolved View vendor source →

Cyderes experienced a major incident on October 29, 2025 affecting Microsoft Sentinel, lasting 8h 23m. The incident has been resolved; the full update timeline is below.

Started
Oct 29, 2025, 05:45 PM UTC
Resolved
Oct 30, 2025, 02:09 AM UTC
Duration
8h 23m
Detected by Pingoru
Oct 29, 2025, 05:45 PM UTC

Affected components

Microsoft Sentinel

Update timeline

  1. identified Oct 29, 2025, 05:45 PM UTC

    Microsoft reports a degradation of services due to AFD problems. This impacts access to the portal and Sentinel. Alert and incident ingestion at Cyderes is not impacted.

  2. identified Oct 29, 2025, 09:18 PM UTC

    Microsoft has implemented recovery procedures and expects full recovery by 23:20 UTC on 29 October 2025.

  3. resolved Oct 30, 2025, 02:09 AM UTC

    This incident has been resolved.