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Last checked just nowNo incidents right now.
Duo Security is operational right now. Last checked just now; the most recent incident resolved 9d ago.
Real-time Duo Security status, recent outages, and incident history — pulled directly from Duo Security's official status page at https://status.duo.com every 5 minutes. Pingoru tracks 766 Duo Security services and has captured 6 incidents in the last 90 days (99.81% uptime). Get email, Slack, Discord, or webhook alerts the moment Duo Security reports a new incident — free for 5 monitors, no credit card.
Recent outages & incidents
Past 90 days- Core Authentication ServiceCore Authentication ServiceCore Authentication ServiceCore Authentication ServiceCore Authentication ServiceCore Authentication ServiceCore Authentication ServiceCore Authentication ServiceCore Authentication ServiceCore Authentication Service
Timeline · 3 updates
- investigating · Sep 03, 2026, 10:04 PM UTC
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 mitigation steps. Updates and additional details will be provided as new information becomes available. We appreciate your patience and understanding during this time.
- monitoring · Sep 03, 2026, 10:30 PM UTC
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 needed.
- resolved · Sep 03, 2026, 11:24 PM UTC
This issue has been resolved. Duo hardware token authentication is now functioning normally on affected US deployments. Other Duo authentication methods were not expected to be impacted. Thank you for your patience. If you continue to experience issues, please contact Duo Support.
Latest: This issue has been resolved. Duo hardware token authentication is now functioning normally on affected US deployments. Other Duo authentication methods were not expected to be imp…
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Timeline · 3 updates
- investigating · Aug 10, 2026, 08:34 PM UTC
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.
- identified · Aug 10, 2026, 09:04 PM UTC
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.
- resolved · Aug 10, 2026, 10:46 PM UTC
This incident has been resolved. New Duo account registrations are now functioning normally. Thank you for your patience. If you continue to experience issues, please contact Duo Support.
Latest: This incident has been resolved. New Duo account registrations are now functioning normally. Thank you for your patience. If you continue to experience issues, please contact Duo S…
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- Phone Call DeliveryPhone Call DeliveryPhone Call DeliveryPhone Call DeliveryPhone Call DeliveryPhone Call DeliveryPhone Call DeliveryPhone Call DeliveryPhone Call DeliveryPhone Call Delivery
Timeline · 3 updates
- identified · Aug 08, 2026, 09:13 PM UTC
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.
- monitoring · Aug 08, 2026, 11:04 PM UTC
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.
- resolved · Aug 09, 2026, 12:07 AM UTC
Phone call authentication delivery for customers in the United States has returned to normal operation. If customers continue to experience issues, please contact Duo Support.
Latest: Phone call authentication delivery for customers in the United States has returned to normal operation. If customers continue to experience issues, please contact Duo Support.
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Timeline · 4 updates
- investigating · Jul 23, 2026, 06:02 PM UTC
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.
- monitoring · Jul 23, 2026, 06:39 PM UTC
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.
- monitoring · Jul 24, 2026, 03:53 PM UTC
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.
- resolved · Jul 27, 2026, 08:41 PM UTC
The SMS and VoIP delivery issue affecting users in Israel has been resolved. If customers continue to experience issues, please contact Duo Support.
Latest: The SMS and VoIP delivery issue affecting users in Israel has been resolved. If customers continue to experience issues, please contact Duo Support.
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- Phone Call DeliverySMS Message Delivery
Timeline · 3 updates
- investigating · Jul 07, 2026, 11:15 PM UTC
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 provided as new information becomes available. We appreciate your patience and understanding during this time.
- monitoring · Jul 08, 2026, 01:22 AM UTC
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.
- resolved · Jul 08, 2026, 03:01 PM UTC
The third-party carrier issue affecting VoIP and SMS services in the Australia region has been resolved. Phone call and SMS authentication services are operating normally. We appreciate your patience and understanding while we addressed this issue.
Latest: The third-party carrier issue affecting VoIP and SMS services in the Australia region has been resolved. Phone call and SMS authentication services are operating normally. We appre…
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See the full Duo Security outage history
1 more incident in the last 90 days, plus the full multi-year archive of per-service events and update timelines.
Browse Duo Security outage history →Or sign up free to get alerts when Duo Security breaks · 10 free monitors · No credit card
- Started Sep 03, 2026, 10:04 PM UTC · Resolved Sep 03, 2026, 11:24 PM UTC · 1h 19m
- New Signups Unavailable ResolvedStarted Aug 10, 2026, 08:34 PM UTC · Resolved Aug 10, 2026, 10:46 PM UTC · 2h 12m
- Started Aug 08, 2026, 09:13 PM UTC · Resolved Aug 09, 2026, 12:07 AM UTC · 2h 54m
- Started Jul 23, 2026, 06:02 PM UTC · Resolved Jul 27, 2026, 08:41 PM UTC · 4d 2h
- Started Jul 07, 2026, 11:15 PM UTC · Resolved Jul 08, 2026, 03:01 PM UTC · 15h 46m
- UAE Telephony SMS issue ResolvedStarted Jun 23, 2026, 03:58 AM UTC · Resolved Jun 23, 2026, 02:21 PM UTC · 10h 22m