Image
![An image of the Shibboleth login, showing an option to "Skip this step with Duke Unlock", an option to use Duo Push or enter a pass code/YubiKey, and an option to check a box for "Remember device for 5 days"](https://oit.duke.edu/sites/default/files/styles/scale_width_1220/public/Duo%20Screenshot.v7.png?itok=7D2LB9Yh)
Call-to-action
Avoid disruption and use Duo Push/Passcode or purchase a YubiKey by March 31, 2025. Learn more: duke.is/mfachanges
Duo is a service you use for multi-factor authentication (MFA). Register a device with Duo, and then choose one or more methods by which to authenticate. You can:
When you use one of the methods above, you’re given access to the requested online service.
You can use 1Password to manage your MFA settings such as Duo, Google Authenticator, and other authentication apps.