Duo Security incident

DUO64: Authentication failures for some users

Major Resolved View vendor source →

Duo Security experienced a major incident on June 2, 2025, lasting 1h 33m. The incident has been resolved; the full update timeline is below.

Started
Jun 02, 2025, 06:17 PM UTC
Resolved
Jun 02, 2025, 07:51 PM UTC
Duration
1h 33m
Detected by Pingoru
Jun 02, 2025, 06:17 PM UTC

Update timeline

  1. investigating Jun 02, 2025, 06:17 PM UTC

    We are investigating authentication failures for some users on the DUO64 deployment, and will share more details as soon as possible.

  2. identified Jun 02, 2025, 06:20 PM UTC

    We have identified the issue and have a fix rolling out now.

  3. resolved Jun 02, 2025, 07:51 PM UTC

    The issue causing authentication failures on DUO64 for some users has been fully resolved.