What is this Duo (Two-Factor) Authentication?

What is DUO (two-step) authentication?
Two-step authentication provides a second layer of security, requiring a physical device to log in, in addition to your password. By requiring an additional channel of authentication, we can protect user logins from remote attacks that may exploit stolen usernames & passwords.

How It Works

  1. Access a link that requires two-factor authentication
  1. Use your phone to verify your identity
  1. You're now securely logged in

Get Started

Step 1 – Enroll Your Device (Smart phone)

Using your device, access your device store APP and download DUO Mobile. DUO Mobile will walk you through how to download the mobile app for your device. Once you install the app, OPEN, and Allow notifications. You will activate it by scanning a QR code with the app’s built-in scanner. Just follow the prompted instructions through the app.

You can also access instructions at the links below.

Enrolling a Non-Smart Cell Phone

  1. In the Duo Control Panel, click Start setup.
  2. Select Mobile phone, and click Continue.
  3. Enter your cell phone number. Verify that it's correct, and click Continue.
  4. Select Other (and cell phones), and click Continue.

When you select Text Me, a text message is sent to your phone. Enter the passcode to proceed.

You’re ready to use DUO!

Authentication Options

Push Notification

Once the DUO mobile app is installed, you can select to receive a DUO notification on your smartphone. Open the notification, and you’ll see a green checkmark and a red x. Simply tap the green checkmark to gain access.


You can use the DUO mobile app to generate passcodes.

What is “Remember me for 30 days”?

Users are offered this “Remember me for 30 days” checkbox during login. When users check this box, they aren't challenged for secondary authentication when they login to that application from that device for the specified period of time.


How Do I Change Settings or Enroll Another Device?

To change settings or enroll another device, access any DUO-supported application and when you get to the DUO prompt, click the Settings button and choose to add a new device or access your settings.

Have additional questions?

Contact our Eagle Technical Assistance Center (ETAC) at 530.7676 or via the web at https://helpdesk.nccu.edu to start a chat session.


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Article ID: 81963
Fri 6/28/19 12:01 PM
Wed 3/31/21 5:11 PM