Skip to main content

Log In Using a USB Security Key for Two-Step Login

How to use a security key, inserted in a USB port, to authenticate with Two-Step Login

This article applies to: Two-Step Login

Log In Using a Security Key (USB Device)

Supported browsers include Chrome 70, Firefox 60, Safari 13 or later, or Microsoft Edge 79 or later. For more information, see Security Keys and Duo.
  1. Insert your security key in a USB port on your computer.
  2. When prompted by CUWebLogin, enter your NetID and Password and select Login.
  3. If you do not see a Use Security Key to login message, select your Security Key from the Device dropdown menu.
  4. Select the Remember me for 24 hours checkbox, if desired.
    U2F security key selected during Two-Step Login authentication prompt
  5. Tap the flashing button on your security key.
    Picture of hand tapping a U2F token inserted in a computer's USB port
  6. If your security key does not flash, remove your device and reinsert it. Then tap the flashing button.
If you enrolled a U2F security key before the update on June 4, 2019, you will be prompted to update your security key the next time you log in with Chrome using that security key.

  1. Select Continue.
  2. Tap the security key.

For additional information, see the Duo Guide to Security Keys.

Purchase a Security Key

Security keys are available online from many vendors. Yubico offers a Security Key.

Was this page helpful?

Your feedback helps improve the site.