Duo - Partial Hardware Token Authentication Issues - United States
View the provider incident record →Current answer
Duo Security experienced a minor incident: Duo - Partial Hardware Token Authentication Issues - United States. ServiceAlert observed recovery on Sep 3, 2026.
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Incident Lifecycle
Affected Components
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Core Authentication Service
Incident Timeline
Monitoring
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 ...
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 ...
Sep 3, 2026 at 10:30 PM UTC
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...
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...
Sep 3, 2026 at 10:04 PM UTC
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