Security Awareness

Recent Changes Made to Duo Security

DuoOn Tuesday, January 4, 2022, a security change was made in Duo, preventing the “call me” or SMS passcode options by the SMU community, as these factors were susceptible to vulnerability and fraud.

How does that apply to me?

An alternate method for two-factor authentication is now required, either by using a hardware token or by installing the Duo Mobile app on your mobile device.

If you previously used the “call me” or SMS passcode options as your primary method to two-factor, please complete the following steps:

  1. Attempt to log in to my.SMU or another application that requires Duo authentication, such as Box. If you can successfully log in using Duo, this change does not impact you.
  2. If you cannot authenticate, please get in touch with the IT Help Desk at 214-768-4357 to assist you. This step is critical as we approach back-to-school, and we need to make sure everyone can access all necessary applications.

For more information about this change and tips on how you can use the Duo “remember me” feature or use your smartwatch to authenticate, visit our announcement about this change. As always, if you need assistance, feel free to reach out to the IT Help Desk at 214-768-HELP (4357) or email

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Ian Aberle

Ian Aberle is an Adobe Creative Educator and the Senior IT Communications Specialist & Trainer for the Office of Information Technology (OIT). For over 25 years, he has helped the SMU community use technology and implement digital and web media through multiple roles with the Digital Commons, SMU STAR Program, and now OIT. Ian enjoys photography and road trips with his family in his free time.