Duo Security incident
SMS, Phone Call, Push delivery failures due to ongoing carrier outages
Resolved after 10 hours 40 minutes, on January 14, 2026.
According to our telephony service provider, the issue affecting SMS, Phone Call, and Push delivery has been resolved. Currently our services are now back to normal.
Update timeline
- investigating Jan 14, 2026, 07:35 PM UTC
There has been an uptick in authentication failures using SMS, Phone Call, and Push as there are ongoing phone carrier outages. Please attempt to leverage our other approved MFA methods, such as Duo Mobile Passcodes, Hardware Tokens, and Security Keys, or move your mobile device to a WiFi connection so that Pushes can be properly received. Please check back here or subscribe to updates for any changes.
- identified Jan 14, 2026, 08:01 PM UTC
We have confirmed that the authentication failures using SMS, Phone Call, and Push are due to ongoing cellular carrier outages. Please attempt to leverage our other approved MFA methods, such as Duo Mobile Passcodes, Hardware Tokens, and Security Keys, or move your mobile device to a WiFi connection so that Pushes can be properly received.
- monitoring Jan 15, 2026, 04:30 AM UTC
We are starting to see recovery post the fix implemented by our service provider for the issue affecting SMS, Phone Call, and Push delivery. Please feel free to check back here or subscribe to updates for the latest information regarding any changes or resolutions.
- resolved Jan 15, 2026, 06:16 AM UTC
According to our telephony service provider, the issue affecting SMS, Phone Call, and Push delivery has been resolved. Currently our services are now back to normal.
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