Update: Wednesday, December 15, 11:50 AM

At approximately 11:15 AM today, Duo two-factor authentication service was restored. Accountholders who could not log in to Denison websites protected by our single sign-on (SSO) service should be able to do so now.

Duo confirmed that this outage occurred due to a service disruption with their web host, Amazon Web Services (AWS). The AWS outage affected a number of vendors and services, including Duo. Read more about today’s AWS outage here.

If you need further assistance accessing Denison services or have other technology questions, please contact the ITS Service Desk at 740-587-6395 or servicedesk@denison.edu.

Initial Post: Wednesday, December 15, 11:00 AM

At 10:35 AM today, the ITS Service Desk received a report that Duo, the two-factor authentication service that protects Denison accounts and services, was not available when attempting to log into a Denison website protected by our single sign-on (SSO) service. ITS staff verified that outage and have since confirmed that there is a Duo outage affecting Denison, other colleges and universities, and other Duo customers.

This outage affects Denison accountholders who have not recently logged into SSO and Duo today. If you have already logged in to SSO and Duo today, you will not observe the problem.

ITS is monitoring Duo’s status, and we’ll share regular updates as more information becomes available.

We recognize that work takes place at all hours of the day, and we apologize for any inconvenience this causes. To request a phone call or email when we learn that Duo service is restored, or for general technology assistance, please contact the ITS Service Desk at 740-587-6395 or servicedesk@denison.edu.