Ready to enroll? Begin by completing the Lehigh Duo Security device enrollment options and adding your second factor device(s). Enroll as many additional factors as practical.  For more information, refer to Two-Factor Authentication with Duo Enrollment Process.

Using your devices for two-factor authentication with Duo

Duo Mobile (Push Notifications or Passcodes): Apple iPhone, Apple Watch, Android Phone, and Windows Phone

Other Devices: Cell Phones and Landlines for SMS/Text or Voice Callback, Hardware Tokens and U2F Authenticators.

Two-Factor Authentication with Duo Prompt (SSO): How to provide your second factor when using Lehigh SSO.

Adding and removing New Devices: How to add and remove devices, sometimes referred to as authentication methods.

If you are running privacy browser extensions, you might need to whitelist sso.lehigh.edu.

Duo Backup Codes: How to print backup codes in an event your primary factor, such as cell phone, is unavailable.

For answers to common questions, visit the Two-factor Authentication with Duo FAQ.