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IT Alert - Resolved: Known Issue Impacting Duo SMS Passcode Requests (for AT&T and Verizon customers only)

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Resolved: Known Issue Impacting Duo SMS Passcode Requests (for AT&T and Verizon customers only)

Last updated on January 8, 2018 at 4:57PM

Update on January 8, 2018 at 4:57PM

Duo\'s telephony provider has reported that they\'ve resolved the issue and SMS messages are expected to complete successfully now.

Original Alert

As of 2:21 p.m. on Monday, January 8, the IT Service Desk was made aware of an issue impacting SMS passcode delivery to some AT&T and Verizon customers. Duo Security reported that they are currently investigating the reports and their provider is actively working on resolving the issues. Other Duo authentication methods such as phone calls, Duo Push Notifications, and already generated passcodes are not affected.

We will post any updates as they become available to us.

For more information, please contact IT Service Desk (itservicedesk@psu.edu).


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Impact Information

  • Incident Type:
    Service Degradation
  • Services affected:
    Duo
  • Locations affected:
    All locations
  • Began on:
    January 8, 2018 at 2:51PM
  • Issue Resolved:
    January 8, 2018 at 4:56PM