Two-Factor Authentication (Duo)

Networking and information technology allow us to improve our reach and efficiency, but with great power comes great responsibility. Cyber criminals often target large organizations like Stockton with phishing scams and social engineering, 2-Factor Authentication is currently the most powerful defense available against these attacks, and Stockton University is leveraging the Duo Security platform to enable easy and non-intrusive 2-Factor Authentication across secure services such as Banner and E-mail.

To begin, download the Duo Mobile App for your smart phone.  Although the Duo Security platform has multiple ways to provide a second authentication factor, we recommend using the Duo Mobile app for IOS and Android for the best experience. 

  • On your Android device open up the Google Play store and search for "Duo Mobile".  It can also be found here.  
  • Tap "install" to start the applicaiton installation 


  • On your Apple device open up the App store and search for "Duo Mobile".  It can also be found here.  
  • Tap "get" to start the applicaiton installation 

Duo App Store

 To perform the next step, your account will have to already be enrolled in Duo.  If you're installing the application prior to your previously specified enrollment date please wait until prompted by the Stockton Go Portal to begin your enrollment.    

If your account has already been enrolled open a web browser on your computer and navigate to the Stockton goPortal at to login to your account by clicking on the "Login to goStockton Portal".  



After entering your username and password you will be prompted by Duo to enroll in 2-Factor Authentication click on the “Start Setup” button and choose the setup option “Mobile phone”.

A screenshot showing the initial setup button for Duo Security


Next, select the setup option “Mobile phone”.
 A screenshot showing the device selection options for Duo security


Enter the phone number of the device you’re enrolling in 2-Factor Authentication, make sure to check the confirmation box that your phone number is correct.

A screenshot showing the phone number entry dialog for Duo security


Select a device type

A screenshot showing the mobile phone type selection screen for Duo security










Depending on the device you’ll be using to enroll in 2-Factor Authentication, follow either the Android or iPhone instructions below. If selecting “Other” you’ll receive the option of either receiving a phone call or a text message passcode to authenticate.





Launch the Duo Mobile app, then tap on the “Add Account” button to open up your camera and scan the QR code on your computer screen.
Launch the Duo Mobile app, accept the license agreement, then tap on the plus icon (+) button at the top-right of your phone screen to open up your camera. Scan the QR code on your computer screen to proceed.
A screenshot showing the QR code used to activate a Duo mobile Android installation
A screenshot showing the QR code used to activate a Duo mobile iPhone installation


If your scan was successful, you should see a green check mark appear over the QR code. Click Continue to proceed.

Choose an authentication method to proceed with logging in to your account, you may check the “Remember me for 30 days” box to remain authenticated with Duo for 30 days.

A screenshot showing the select authentication method menu in Duo security








If using “Send me a Push” Duo will create a notification on your phone when you attempt to log into a secure service.

A screenshot showing a push notification for Duo Mobile







Tap the green button to approve your login attempt.

A screenshot showing a login request with an approve and deny button in the Duo Mobile app















If you experience any issues enrolling with Duo 2-Factor Authentication, contact the IT Services Help Desk at 609-652-4309.


If you do not wish to install the Duo mobile app on your smartphone, there are several alternative options:

  1. Text message (SMS): A text message with a one-time use code is sent to your phone.A screenshot of the Duo "text message" option
  1. Voice call: A call will be made to the number on file.  Press 1 to accept, press # to report a fraudulent authentication attempt.
    A screenshot of the Duo "voice call" option


  1. Hard token: A small physical device that you carry around.  Press the button and it generates a one-time use code. A screenshot of the Duo "hard token" option


 If you previously enrolled your phone with the Duo app and would prefer to use only the voice/text options, simply uninstall the app from your device and choose the desired option (SMS or voice) next time you’re prompted for a second factor. 


If you would like to obtain a hard token or wish to adjust your enrollment method, please contact via email or by phone (609-652-4779).