2FA Frequently asked questions

You must enrol in the University's two-factor authentication (2FA) service before gaining access to those 2FA supported systems. Visit https://uwaterloo.login.duosecurity.com/devices to enrol your device, then attempt to log in to the system again.

Follow the steps outlined in the Duo 2FA and the VPN knowledge base support article.

Passwords are increasingly easy to compromise. They can often be stolen, guessed, or hacked — you could be locked out of your account, or you might not even know someone is accessing it. With 2FA, you'll be alerted right away (on your phone) if someone is trying to log in as you.

Yes, you can configure several devices on your Duo account via the device management portal. As well, multiple devices of the same type can be added.

Android: the current version of Duo Mobile supports Android 10.0 and greater. Duo recommends upgrading to the most recent version of Android available for your device. We cannot ensure compatibility of Duo Mobile with custom variants or distributions of Android. 

iPhone: The current version of Duo Mobile supports iOS 14.0 and greater. Support for older Duo Mobile versions on iOS 10.0 ended December 1, 2020..


Need help?

Contact the IST Service Desk online or 519-888-4567 ext. 44357.

Article feedback

If you’d like to share any feedback about this article, please let us know.