Duo Security Outage History
Daily status observations, past incidents, and reported issue history for Duo Security.
Checking current status...
90-Day Trend
Monthly Status Summary
| Month | Issue-free days | Days Tracked | Days with Issues |
|---|---|---|---|
| August 2026 | 88% | 25 | 3 |
| July 2026 | 77.4% | 31 | 7 |
| June 2026 | 93.3% | 30 | 2 |
| May 2026 | 100% | 5 | 0 |
This percentage summarizes normalized provider-status observations by calendar day. It is not duration-based, component-weighted, or contractual uptime. See the methodology and limitations.
Daily Status (Last 91 Days)
May 27
Today
Operational
Degraded
Partial Outage
Major Outage
Maintenance
No Data
Incident History
August 2026
New Signups Unavailable
Started:
identified
We have identified the issue affecting new account registrations. Our team is working on a fix and expects to release it soon.
We apologize for any inconvenience and appreciate your continued patience.
investigating
We are investigating an issue affecting the signup service. New account registrations are temporarily unavailable.
Our team is actively investigating and working to restore normal service. We apologize for any inconvenience and appreciate your patience.
Duo Phone Call Authentication Failures - United States
Started:
monitoring
We are seeing recovery for the issue related to a third-party carrier disruption that caused phone call authentication failures for customers in the United States.
We are actively monitoring phone call authentication delivery and will provide another update once the issue is fully resolved.
identified
We have identified an issue causing phone call authentication failures for customers in the United States. This is related to a third-party carrier disruption. We are actively monitoring the carrier issue and working with our provider as needed.
Please check back here or subscribe to updates for any changes.
July 2026
VoIP and SMS Delivery Issues in Israel
Started:
monitoring
Error rates for SMS and VoIP delivery in Israel have reduced following the implemented change. We are continuing to monitor service behavior and investigate reports of intermittent failures affecting some customers.
We will provide another update as more information becomes available.
monitoring
We have implemented a change to address the SMS and VoIP delivery issue affecting users in Israel. SMS and VoIP delivery have recovered, and we are monitoring to confirm continued stability.
investigating
We are investigating an issue affecting VoIP and SMS message delivery for users in Israel. The issue is related to an upstream carrier.
Our team is working with our providers to investigate and restore normal service. Where available, users can use alternative authentication methods such as Duo Push.
We will provide updates as more information becomes available.
Duo - Phone call and SMS authentication issues - Australia
Started:
monitoring
The third-party carrier has indicated that the issue affecting VoIP and SMS services in the Australia region has been resolved.
Customers in Australia should see improved delivery for phone call and SMS authentication. Other Duo authentication methods, such as Push Delivery, remain available as alternate authentication methods if configured.
We are continuing to monitor service stability and will provide additional updates when the incident is fully resolved.
investigating
We are investigating a third-party carrier issue affecting VoIP and SMS services in the Australia region.
Customers in Australia may experience delays or failures when using phone call or SMS authentication.
Other Duo authentication methods, such as Push Delivery, are not expected to be impacted and can be used as an alternate method of authentication if available.
Our team is monitoring the carrier issue and working with the provider as needed. Updates and additional details will be provi...
June 2026
UAE Telephony SMS issue
Started:
monitoring
We have mitigated the SMS delivery issue affecting the UAE region. We are actively monitoring the situation and will provide a final update once the issue is fully resolved.
identified
We have identified the issue related to SMS for UAE region and are working to resolve it.
Users have the option to use alternative auth methods, like Duo Push or VoIP.
Please check back here or subscribe to updates for any changes.
AI Assistant Service Disruption in US-W1
Started:
investigating
We are currently investigating an issue affecting AI Assistant functionality in the US-W1 (US West-1) region. Users may experience errors or be unable to access AI Assistant features.
Our engineering teams are actively investigating the issue and working to restore normal service as quickly as possible.
Please check back here or subscribe to updates for the latest information.
May 2026
All US Deployments: AI Assistant failures
Started:
monitoring
We have implemented mitigation measures and are observing improved AI Assistant performance. We are continuing to monitor success rates and overall service stability.
investigating
We are currently investigating an issue with AI Assistant not functioning on all US deployments and are working to correct the issue as soon as possible.
Please check back here or subscribe to updates for any changes.
Authentication failures
Started:
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.
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.
investigating
We are currently investigating an issue causing limited authentication failures on DUO57 and are working to correct the issue as soon as possible.
AI Assistant First-Time Access Failures for EU Administrators
Started:
identified
We’ve identified a problem impacting first-time access to the AI Assistant for administrators in the EU and are actively working to restore normal access. We’ll continue to share updates as progress is made.
investigating
We are investigating an issue causing failures when administrators located in the EU attempt to access the AI Assistant for the first time. Any administrators who have used the Assistant before should still be able to at this time
AI Assistant First-Time Access Failures for EU Administrators
Started:
investigating
We are continuing to investigate this issue.
investigating
We are investigating an issue causing failures when administrators located in the EU attempt to access the AI Assistant for the first time. Any administrators who have used the Assistant before should still be able to at this time
Components Impacted: DUO3, DUO38, DUO47, DUO48, DUO 57, DUO70 : AI assistance
April 2026
Desktop Authenticator Enrollment Degradation
Started:
monitoring
Mitigation actions have been implemented. The service has stabilized and recovery is underway. We will continue to monitor to ensure full resolution.
identified
We are currently addressing an issue impacting desktop authenticator enrollments .A subset of customers may experience intermittent delays or failures during desktop authenticator enrollment. Mitigation actions are in progress and are helping to reduce impact. Core authentication, SSO, and delivery services remain fully operational.
Elevated Authentication Latency in DUO6
Started:
monitoring
We have applied mitigation steps and are seeing improved authentication performance for customers in the deployment. Authentication latency has decreased, and the service is recovering. Our team is continuing to monitor the environment closely to ensure stability while we investigate the underlying cause.
investigating
We are investigating elevated authentication latency affecting customers . Authentication requests are continuing to succeed at this time, but customers may experience slower-than-normal response times and degraded performance during login attempts. Our team is actively working to identify the cause and restore normal performance as quickly as possible.
SMS Delivery Failures
Started:
investigating
We are continuing to investigate the SMS delivery issue impacting all customers in the US region. Push notifications will continue to work as expected. Further updates will be provided as more information becomes available.
investigating
We are currently detecting an issue with carriers in the US region for SMS delivery. We are currently working with providers to restore the service. In the meantime, please use other means of authentication such as Duo Push.
March 2026
Duo Phone Call Authentication Failure for US Based Carriers
Started:
monitoring
We are now observing high rates of success of VoIP authentication. The issue appears to be resolved but we will continue to monitor the situation.
investigating
We are currently observing a recurrence of the issue causing VOIP authentication failures in all deployments in the US region. We are working to correct the issue as soon as possible. While we work to resolve this, please use alternative authentication methods such as Duo Mobile Push, SMS passcodes etc.
A full list of available authentication methods can be found here:
https://duo.com/docs/policy#authentication-methods
Duo Phone Call Authentication Failure for US Based Carriers
Started:
monitoring
We are now observing high rates of success of VoIP authentication. We will continue to monitor the situation.
investigating
We are observing a recovery in voice call processing across the U.S. and are continuing to investigate the root cause of this impact.
investigating
We are currently investigating an issue causing VOIP authentication failures in all the deployments in the US region and are working to correct the issue as soon as possible. At this time please use alternative authentication methods such as Duo Mobile Push, or SMS passcodes.
A list of all other alternative authentication methods can be found here:
https://duo.com/docs/policy#authentication-methods
Please check back here or subscribe to updates for any changes.