Outage in Duo Security

Multiple Deployments: Duo SSO Authentication Failures for some customers

Resolved Minor
January 30, 2025 - Started 3 months ago - Lasted 29 minutes
Official incident page

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Outage Details

We are investigating an issue that is causing a small number of customers to experience authentication failures when logging into applications protected by Duo SSO.
Components affected
Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO Duo Security SSO
Latest Updates ( sorted recent to last )
RESOLVED 3 months ago - at 01/30/2025 06:55PM

We can now confirm that SSO authentications are now fully operational and the issue is resolved. We will provide an RCA as soon as it is available.

In the meantime, we highly recommend configuring multiple Duo Authentication Proxies, ideally 3, for Duo SSO for redundancy, as only customers who had a single proxy were impacted. More details on this can be found here:
https://duo.com/docs/sso#configure-your-authentication-source
https://help.duo.com/s/article/6321

MONITORING 3 months ago - at 01/30/2025 06:37PM

We are continuing to monitor for any further issues.

MONITORING 3 months ago - at 01/30/2025 06:34PM

We have implemented a fix and are seeing successful recovery of Duo SSO authentications for impacted customers. We will continue monitoring to ensure the issue is fully resolved.

INVESTIGATING 3 months ago - at 01/30/2025 06:27PM

We are investigating an issue that is causing a small number of customers to experience authentication failures when logging into applications protected by Duo SSO.

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