Two-Step Login: Using Duo at IU

Two-Step Login (Duo) provides an additional layer of security when you log in to some IU systems. Two-Step Login, also known as two-factor authentication, helps protect sensitive data and guard against increasingly sophisticated email and online scams (e.g., phishing attacks) that can leave you vulnerable to identity theft. IU has partnered with Duo to provide this service.

Training and support resources

Looking for help with Duo? Find what you need:

As of November 2, 2017, all IU students are required to use Two-Step Login (Duo) for all CAS logins.