1. Enter your username and password as usual 
2. Use your phone to verify your identity using the Duo mobile app
3. Securely logged in 

No mobile phone? You can also use a landline or tablet or ask your department for a Duo hardware token or purchase one from the Cougarbyte  store. Two-Factor Authentication lets you link multiple devices to your account, so you can use your mobile phone and a landline, a landline and a Duo hardware token, two different mobile devices, etc.