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Image of the 2Factor Authentication logo plus the Duo Mobile App logo equals a thumbs up.

To safeguard our information from cyber threats, VCU has integrated VCU 2Factor Authentication.

What is VCU 2Factor Authentication?

VCU 2Factor authentication is an extra layer of security to ensure that you are the only person who can access your account, even if someone knows your password. VCU account access requires your eID, Password, and a Device.

The device can be any of:

  • Smartphone/Tablet - DUO Mobile App  Recommended option
  • Legacy mobile phone - SMS
  • Keychain token (like YubiKey)

Let's get started

The two-step process is:

  1. Download and install DUO Mobile App on your device

    Apple Icon




    DUO Mobile for Apple IOS

    Android Icon




    DUO Mobile for Android

  2. Register your device with VCU Central Authentication Service (CAS) by visiting  (Step-by-step instructions)

- If you are on the VCU campus, please be sure to turn off your WiFi before registration.