- Level
- confirmed
- Worst impact
- Degraded
- Components
- Core Authentication Service
- Down Index
- 20of 100
What to do
Check whether you use Duo Security Core Authentication Service. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 2h 41m it lasted.
Anything that failed between 2026-05-13 13:22 UTC and 2026-05-13 16:03 UTC may need a replay.Subscribe to Duo Security's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=duo works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Duo Security 4
- investigating
We are currently investigating an issue causing limited authentication failures on DUO57 and are working to correct the issue as soon as possible.
provider
- identified
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.
provider
- monitoring
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.
provider
- resolved
The issue causing authentication failures on DUO57 with the Duo Core Authentication Service is now resolved and full functionality has been restored.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-fb8781f938
Is Duo Security still down?
No, this incident was resolved 2026-05-13 16:03 UTC. For Duo Security's live state, see https://down.guide/duo.
How long did it last?
2h 41m, from 2026-05-13 13:22 UTC to 2026-05-13 16:03 UTC, by the times Duo Security posted.
What was affected?
Duo Security named Core Authentication Service.
What caused it?
Duo Security hasn't published a root cause. If it does, it shows here.
Where does this come from?
Duo Security's official status page, https://status.duo.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.