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UL2FCTR/Duo supports multiple types of authentication methods, each with unique security features. Learn about each authentication method, from the most secure to the least secure. This article explains how you can verify whether your Android device is supported by Duo Mobile. Use this when you are unable to authenticate with Duo or want to confirm your Android version meets Duo security requirements.

You can use the Identity and Access Management portal to manage your UL2FCTR/Duo devices. Use these instructions to add a device to use for UL2FCTR/Duo, remove a device from your profile or reactivate on a new phone.

Learn about UL2FCTR/Duo, UofL's two-factor authentication system. Get information on what UL2FCTR is, who needs to sign up for UL2FCTR/Duo, what university systems/applications use it, and how to sign up for it.