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98.2%of 57 verified observed days had no reported provider issue
90-Day Trend
Dashed calendar markers below identify legacy observations whose source-at-observation was not recorded.
Monthly Status Summary
Month
Issue-free days
Days Tracked
Days with issues
September 2026
96.7%
30
1
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.
Recorded Daily Status (Last 91 Days)
Jul 22Today
Legacy observation Operational Degraded Partial Outage Major Outage Maintenance No Data
Incident History
September 2026
Duo - Partial Hardware Token Authentication Issues - United States
We have seen the failure rate for Duo hardware token authentication subside on affected US deployments.
Customers using hardware tokens may still experience intermittent authentication failures while we continue to monitor. Retrying the authentication attempt is expected to succeed. Other Duo authentication methods are not expected to be impacted and can be used as alternate methods if configured and available.
We will continue to monitor service stability and provide additional updates as ...
investigating
We are investigating a partial outage affecting Duo hardware token authentication for customers on affected US deployments.
Customers using hardware tokens may experience intermittent authentication failures. Based on current information, retrying the authentication attempt is expected to succeed. Other Duo authentication methods are not expected to be impacted and can be used as alternate methods if configured and available.
Our engineering team is actively investigating and has started mi...
Legacy Incident Archive
15 archived records restored. These records predate source-at-observation attestation. They are shown as historical ServiceAlert records only and do not establish a provider-reported incident, resolution, duration, or current active state.
April 2026
Desktop Authenticator Enrollment Degradation
minorSource not attested
Last archived state: resolved
View archived record details
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
majorSource not attested
Last archived state: resolved
View archived record details
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
majorSource not attested
Last archived state: resolved
View archived record details
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
Source not attested
Last archived state: resolved
View archived record details
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
Source not attested
Last archived state: resolved
View archived record details
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
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