Duo Security Status

Is Duo Security down?

Current Status: Duo Security is UP

We checked the official Duo Security status page for updates 5 mins, 17 seconds ago.

Past Duo Security Incidents

Source: Official Duo Security status page
Start Time (UTC)Incident Deep LinkImpactDurationDescription
2025-10-20 04:29 All Deployments: Duo Phone Call and SMS Delivery Failure
major
2 hrs, 37 mins

The issue affecting phone-based authentication and SMS delivery has now been resolved. System performance has rem...

2025-10-20 03:54 All Deployments: Email delivery issues
minor
3 hrs, 26 mins

The issue affecting email delivery has been resolved. System performance has remained stable, and all services ar...

2025-10-15 08:19 [All Deployments] Duo Desktop not being recognized on Windows 11 24H2/25H2
minor
7 hrs, 42 mins

We have identified an issue with a recent Windows update that has caused Duo Desktop to not be recognized on Wind...

2025-10-07 15:13 [DUO34] Full Deployment Outage
critical
43 mins

The issue causing an outage for all services on our DUO34 deployment has been resolved. We will publish a RCA as...

2025-09-29 05:46 [All Deployments] Entra ID Failing to Sync Custom Attributes
minor
7 hrs, 6 mins

This incident has been resolved.This incident has been resolved.

2025-09-26 10:54 [Multiple Deployments] Administrators unable to access the Duo AI Assistant for the first time
minor
7 hrs, 47 mins

We have confirmed the issue is now fully resolved. An RCA will be provided as soon as it is available.We have confirmed the issue is now fully resolved. An RCA will be provided as soon as it is available.

2025-09-09 12:44 [Multiple Deployments] Admin Panel Login Failures
major
25 mins

The issue regarding login failures on cross deployment logins to the Duo Admin Panel has been resolved and functi...

2025-08-29 13:30 Blank Duo Prompt issue impacting users authenticating from both Chrome and Edge version 136 browsers...
none
11 hrs, 33 mins

The issue causing the blank prompt is now resolved and full functionality is restored. We will be posting a root...

2025-08-26 10:43 [Multiple Deployments] - Issues with User Management in Admin Panel
minor
15 mins

The issue affecting updates or changes made to users in the Admin Panel on selected deployments has been resolved...

2025-08-26 04:08 Admin functions impacted when accessing Users and AD Sync on certain deployments
critical
3 hrs, 35 mins

The issue affecting User Management and SSO logins on Duo3, Duo47, and Duo57 has been fully resolved, and all ser...

2025-08-26 02:29 T-Mobile Services SMS Delivery Issue
minor
3 hrs, 52 mins

Duo has confirmed that the issue affecting SMS delivery to phone numbers using T-Mobile services in the US has be...

2025-08-18 07:25 India VoIP Failures
minor
4 hrs, 2 mins

Duo has confirmed that the phone call authentication failures affecting all deployments in India have been fully ...

2025-08-06 00:40 US SMS delivery delays and failures
major
3 hrs, 26 mins

The issue affecting SMS delivery to US phone numbers has been resolved. Services are now fully operational.The issue affecting SMS delivery to US phone numbers has been resolved. Services are now fully operational.

2025-08-05 20:03 [DUO41] Admin Panel Login Failures
major
23 mins

The issue causing login failures when attempting to access the Duo Admin Panel on the DUO41 deployment has been f...

2025-08-01 03:27 All US Deployments: AI Assistant failures
none
0 second

Jul 31, 23:27 EDTResolved - The issue with AI Assistant failures in all US deployments is now resolved and full f...

2025-07-31 23:50 India VoIP Failures
none
0 second

Jul 31, 19:50 EDTResolved - The issue causing VoIP authentication failures in India is resolved and VoIP authenti...

2025-07-30 11:14 India VoIP Failures
none
0 second

Jul 30, 07:14 EDTResolved - The issue causing VoIP authentication failures in India is now fully resolved.Jul 30,...

2025-07-28 13:51 India VoIP failures
none
0 second

Jul 28, 09:51 EDTResolved - The issue causing VoIP authentication failures in India is now fully resolved.Jul 28,...

2025-07-25 00:43 GB VoIP Failures
none
0 second

Jul 24, 20:43 EDTResolved - The issue causing VoIP authentication failures in Great Britain is now resolved.Jul 2...

2025-07-24 12:33 Duo AI Assistant Intermittent failures
none
0 second

Jul 24, 08:33 EDTResolved - We can confirm that the issue with the Duo AI assistant has been resolved.Jul 23, 20:...

2025-07-17 21:04 Issues Loading Admin Panel SSO Pages
none
0 second

Jul 17, 17:04 EDTResolved - The issues loading SSO pages in the Admin Panel have been resolved.Jul 17, 16:56 EDTM...

2025-07-17 19:05 Duo Support: Phone Routing Issues
none
0 second

Jul 17, 15:05 EDTResolved - This incident has been resolved.Jul 17, 13:07 EDTMonitoring - A fix has been implemen...

2025-07-14 22:46 Possible Duo SSO login failures
none
0 second

Jul 14, 18:46 EDTResolved - We can confirm that the issue with the Duo SSO logins has been resolved.Jul 14, 18:26...

2025-06-30 20:55 Duo Support Phone Number Unable to Detect Key Press
none
0 second

Jun 30, 16:55 EDTResolved - We have tested from multiple providers and are able to confirm that key presses are r...

2025-06-24 13:02 Issue with Admin Panel Activity Logs Access
none
0 second

Jun 24, 09:02 EDTResolved - We have confirmed that the issue with Activity Log visibility is now fully resolved.J...

2025-06-21 14:57 Federal Certificate Expired
none
0 second

An expired certificate in the Duo Federal environment potentially disrupted authentication attempts for customers...

2025-06-11 04:33 All Deployments: Duo Phone Call Authentication Failure for India Region
minor
48 mins

The issue affecting Phone call delivery to the India region has been resolved. Services are now fully operational...

2025-06-06 09:27 [DUO50] Admin Panel Login Failures
major
46 mins

The issue causing login failures and "Invalid Credentials" messages when attempting to access the Duo Admin Panel...

2025-06-06 02:57 SMS Delivery Issues to Netherlands & Australia Phone Numbers
minor
3 hrs, 52 mins

The issue affecting SMS delivery to NL and AU phone numbers has been resolved. Services are now fully operational...

2025-06-02 14:17 DUO64: Authentication failures for some users
major
1 hr, 34 mins

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

2025-05-28 06:17 SMS Delivery Issues to Greece Phone Numbers
minor
2 hrs

The third-party issue with intermittent SMS delivery failures for Greece has been resolved.The third-party issue with intermittent SMS delivery failures for Greece has been resolved.

2025-05-19 19:20 Password Reset Failure for Duo SSO Logins using Active Directory
minor
1 hr, 44 mins

We can confirm that the issue with the Password reset for Duo SSO logins using Active Directory has been resolved...

2025-05-19 08:24 [Multiple Deployments] Authentication Delays for Duo SSO Logins using Active Directory
minor
1 hr, 22 mins

After continued monitoring, we can confirm that the issue causing intermittent authentication delays for Duo SSO ...

2025-05-13 10:54 All Deployments: Degradation in India VOIP services
minor
5 hrs, 37 mins

We are no longer seeing outage reports from the backend provider. All services are considered fully operational.We are no longer seeing outage reports from the backend provider. All services are considered fully operational.

2025-04-22 10:18 All Deployments: Duo SMS Passcode Authentication Failures for US region
minor
47 mins

After continued monitoring of the third-party carrier's status, the issue causing intermittent SMS delivery to th...

2025-04-02 09:54 All Deployments: Duo Phone Call Authentication Failures for India
minor
20 mins

The third-party issue with intermittent phone call failures for India has been resolved.The third-party issue with intermittent phone call failures for India has been resolved.

2025-03-31 11:49 All Deployments: Duo Phone Call Authentication Failure for US Region
minor
31 mins

The third-party issue with intermittent phone call failures for the US region has been resolved.The third-party issue with intermittent phone call failures for the US region has been resolved.

2025-02-24 10:17 All Deployments: Admin Panel Login Issues
major
1 hr, 40 mins

We have confirmed that the implemented fix has resolved the issue. Admin Panel logins are now fully operational. ...

2025-02-17 06:13 SMS Delivery Issues: UAE
minor
0 second

The issue causing intermittent SMS delivery failures in the UAE has been resolved.The issue causing intermittent SMS delivery failures in the UAE has been resolved.

2025-02-13 13:45 All Deployments: Core Authentication Service, Admin Panel logins, Device Management Portal, Risk-bas...
major
6 hrs, 58 mins

We can now confirm that all services have been completely restored. A full RCA will be provided as soon as possib...

2025-02-11 10:10 Multiple Deployments: Duo SSO Authentication Failures for some customers
minor
1 hr, 30 mins

We have confirmed that following the rollback of the recent D308 changes for affected customers, Duo SSO authenti...

2025-01-30 13:27 Multiple Deployments: Duo SSO Authentication Failures for some customers
minor
28 mins

We can now confirm that SSO authentications are now fully operational and the issue is resolved. We will provide ...

2025-01-28 19:21 Authentication failures for the India region
minor
49 mins

The issue causing authentication failures in the India region has been resolved and full functionality has been r...

2025-01-23 09:43 Intermittent Phone Call MFA failures for the UK region
minor
22 hrs, 14 mins

The issue causing intermittent phone call delivery failures in the UK region has been resolved and full functiona...

2025-01-07 18:22 Multiple Deployments: Admin Panel Log Delays for Some Customers
minor
3 hrs, 44 mins

The issue impacting the availability of Activity and Telephony Log messages in the Admin Panel / Admin API is now...

2024-12-19 10:26 Duo Support Phone System Issue
minor
43 mins

The issue with call handling for our Duo Support Team has been resolved.The issue with call handling for our Duo Support Team has been resolved.

2024-12-06 15:23 Multiple Deployments: Intermittent SSO log retrieval failure
minor
1 hr, 28 mins

After further investigation, we have confirmed that no customers should be impacted by this, as only internal sys...

2024-11-28 19:05 All Deployments: Duo SMS Delivery Failure for some Australian customers
minor
2 hrs, 49 mins

The issue causing SMS delivery failures for some Australian customers is now resolved and full functionality is r...

2024-11-05 13:33 [Multiple Deployments] Activity and Telephony Log Retrieval Errors
minor
1 hr, 17 mins

The issue impacting querying activity and telephony logs via the Duo Admin API and Admin Panel is now resolved an...

2024-11-04 19:24 [Federal Deployments] Authentication issues using Yubikey tokens
critical
40 mins

The issue causing authentication failures using Yubikey tokens is now resolved and full functionality is restored...