About Two-Step Login (Duo) at IU

Logins for all IU students, faculty, staff, retirees, affiliates, and those with Academic (ACNP) status require Two-Step Login (Duo), including group or departmental accounts (but not IU Guest accounts).

Two-Step Login (Duo) provides an additional layer of security when you log into 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 (for example, phishing attacks) that can leave you vulnerable to identity theft. IU has partnered with Duo to provide this service.

Like similar services offered by Google and Facebook, you log in by:

  1. Entering your username and passphrase.
  2. Confirming your login with an enrolled device.

UITS recommends using the Duo Mobile app on your smartphone or tablet, but if you don't have such a device, regular cell phones, landlines, Google Voice phone number, and U2F tokens are also supported. Single-button hardware tokens are also being made available.

For step-by-step instructions for all options, see Get started with Two-Step Login (Duo) at IU.

To see how this works, view a video about Two-Step Login in action.


To lessen the number of times you need to complete a login with Duo, select Remember me for 7 days when completing a login. This will keep you from having to Two-Step for logins for seven days in the browser from which you initiated your login. If you have autopush enabled, you'll need to cancel the autopush to check the box, and then resend the push to complete the login.

Duo screen with option to remember me for 7 days

This is document beum in the Knowledge Base.
Last modified on 2019-05-03 14:23:54.

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For help or to comment, email the UITS Support Center.