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Log In Using Duo Push for Two-Step Login

How to use the Duo Push app to authenticate with Two-Step Login. This also includes information about your location privacy. Duo only records a general location at the time of the login attempt.

This article applies to: Two-Step Login

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Log In Using the Duo Mobile App

Duo Push works with Duo Mobile, an app you install and activate on your smartphone or tablet. You can download Duo Mobile from your device’s app store.

Log In using Duo Push

  1. If you have most recently authenticated using Duo Push, the Open Duo Mobile screen should appear on your computer when you need to authenticate with Two-Step Login.

    If Duo prompts you for a different authentication method (for example, Answer the phone call), but you would prefer to use the Duo Push method, click Other options, then select Send Duo Push from the list of available methods.
  2. Open the Duo Mobile app on your smartphone or tablet.
  3. In the app, tap Approve to authenticate.

    Duo mobile app authentication prompt showing the Cornell seal logo, information about the current Duo request, and buttons to Deny or Approve the request
  4. The service you were logging into will open on your computer or device.

Was this a suspicious authentication prompt?

The Duo prompt shows the app name and place of the login attempt. If you have not made a login attempt that required Two-Step Login, or if the information on the Duo Mobile screen doesn't match your current activity or location, then:

  1. Tap Deny on the Duo Mobile app screen.
  2. When you deny a Duo request, the Duo Mobile app will ask, Was this a suspicious login?
  • Tap Yes if you suspect someone else may be trying to access your account.

Always report fraudulent attempts.

Selecting Yes will trigger an alert to the IT Security Office. A Cornell security engineer will check whether someone tried to improperly use your identity to access a Cornell app. This will help protect your sensitive personal information.
  • Choose No if you selected Deny by accident.

Your Location and Privacy

Duo does not track your exact location. It only records broad geographic data for the city or country where the login originated, such as "Ithaca, NY, US." Duo only records a location at the time of the login attempt.

More Duo Help

For details about installing and using the Duo Mobile app, go to Duo Security's Guide to Two-Factor Authentication and find your type of smartphone.

For iOS users using 3D Touch, get more information about how to approve a Duo Push notification from the iOS lock screen.

Support Contact:

Cornell IT Service Desk

Normal Business Hours: Monday-Friday, 8am-6pm (Eastern Time)
Emergency Service Disruptions: After Hours Support


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