Duo Security incident

[All Deployments] Entra ID Failing to Sync Custom Attributes

Minor Resolved View vendor source →

Duo Security experienced a minor incident on September 29, 2025, lasting 7h 6m. The incident has been resolved; the full update timeline is below.

Started
Sep 29, 2025, 09:46 AM UTC
Resolved
Sep 29, 2025, 04:52 PM UTC
Duration
7h 6m
Detected by Pingoru
Sep 29, 2025, 09:46 AM UTC

Update timeline

  1. investigating Sep 29, 2025, 09:46 AM UTC

    We are current investigating issue where custom attributes are not being synced from Entra ID to Duo. Entra ID sync is working as expected with standard attributes. Please refer to the status page for further updates.

  2. investigating Sep 29, 2025, 10:32 AM UTC

    We are continuing to investigate this. Please pause your Entra ID sync if you are using any custom attributes as sync attributes, and, if possible, do not run a full manual sync until the issue is resolved. As a workaround, an admin can sync individual users by following the instructions in our guide below: https://duo.com/docs/azuresync#sync-individual-users-from-the-duo-admin-panel

  3. identified Sep 29, 2025, 04:16 PM UTC

    We have identified the issue causing custom attributes to not sync from Entra ID to Duo and are working with the vendor to resolve it. We will work with affected customers while a fix is developed and deployed. Please reach out to [email protected] or give us a call at the number listed for your region on our Support Page, https://duo.com/support. We will close this incident on the Status Page shortly. Please pause your Entra ID sync if you are using any custom attributes as sync attributes, and, if possible, do not run a full manual sync until the issue is resolved. As a workaround, an administrator can sync individual users by following the instructions in our guide below: https://duo.com/docs/azuresync#sync-individual-users-from-the-duo-admin-panel

  4. resolved Sep 29, 2025, 04:52 PM UTC

    This incident has been resolved.