How Duo Two-Step Login works
Two-step login means that when you log into a protected system, you be prompted to approve this login from your default device. If you are not sure which device is your default device learn how to manage your devices.
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- Enter your NetID and NetID password.
- A screen will appear presenting numbers that need to be entered in the Duo Mobile App.
- Enter the numbers that's display on the screen into the Duo Push notification.
- Select the Verify after entering the numbers for Duo to authenticate the login request.
When you try to log into a system that has Duo Two-Step Login:
- If you are not an enrolled Duo user, your login will not be verified, and you will not be able to get into the system.
- If you are an enrolled Duo user, you will be prompted by your default device to approve this login or register your 1st device.
For Systems That are Not Using SSO
You will not be prompted to use Duo and you will sign in to the account without being verified.
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This Content Last Updated:
01/30/2026
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Customer Engagement and Support
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