Duo Security experienced a minor incident on May 13, 2026 affecting Core Authentication Service, lasting 2h 41m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 13, 2026, 01:22 PM UTC
We are currently investigating an issue causing limited authentication failures on DUO57 and are working to correct the issue as soon as possible.
- identified May 13, 2026, 02:52 PM UTC
We have identified the cause of the issue causing authentication failures on DUO57 with the Duo Core Authentication Service and are actively working to restore service.
- monitoring May 13, 2026, 03:37 PM UTC
We have implemented a fix for the issue causing authentication failures on DUO57 with the Duo Core Authentication Service. We will continue to monitor system performance and authentication success rates and will provide further updates once the incident is fully resolved.
- resolved May 13, 2026, 04:03 PM UTC
The issue causing authentication failures on DUO57 with the Duo Core Authentication Service is now resolved and full functionality has been restored.