Help Documentation


Once you sign up for TrueYou Duo, you will be required to use it for the following systems:

Need help?

Need a TrueYou Duo token?

Nebraska Student
Information System
for designated personnel

Contact the Security Operations Center
(402) 472-5700

You MUST be enrolled before you can request a token
Submit a request via online form





What is TrueYou Duo Two Factor?

Two-factor authentication adds a second layer of security to your online accounts. Verifying your identity using a second factor (like your phone or other mobile device) prevents anyone but you from logging in, even if they know your password.

How It Works

Once you've enrolled in TrueYou Duo you're ready to go: You willl log in as usual with your username and password, and then use your device to verify that it is you. You can set up the system to do this via voice call, one-time passcode, the Duo Mobile smartphone app, and so on.

No mobile phone?  
You can also use a landline or tablet, or submit a request for a hardware token. TrueYou Duo lets you link multiple devices to your account, so you can use your mobile phone and a landline, two different mobile devices, etc.

Why Do I Need This?
Passwords are increasingly easy to compromise. They can often be stolen, guessed, or hacked — you might not even know someone is accessing your account. Two-factor authentication adds a second layer of security, keeping your account secure even if your password is compromised. With Duo Push, you will be alerted right away (on your phone) if someone is trying to log in as you. This second factor of authentication is separate and independent from your username and password — Duo never sees your password.


How to register for TrueYou Duo or update your devices

  1. Log into TrueYou (
  2. From Account Settings, select Manage TrueYou Duo Two-Factor Devices.
  3. Review the information and click the checkbox next to I Agree. Click on Submit.

    Note: If you enabled the option to automatically send you an authentication request via push or phone call, you will need to cancel the push or phone call in progress before you can click the "My Settings & Devices" link.

  4. Use these instructions to complete your registration or if already registered, complete the following steps:

    1. Choose an authentication method.; and then…
    2. Select either Add a new device or My Settings & Devices. You will be asked to choose an authentication method once more.


How to authenicate with TrueYou Duo


From the system you are trying to access (Firefly, Student Information System, etc), type your NUID (NetID for UNMC) and password, click on Log In. An authentication screen appears providing options. Note: this will vary, depending on your default device that you set up within Manage TrueYou Duo Two-Factor Devices, accessible through TrueYou.




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Frequently Asked Questions (FAQs)

What is Two-Factor Authentication (TFA)?
The goal of two-factor authentication is to make it more difficult for an unauthorized person to access your information. Two-factor authentication adds a step to the login process and requires you to prove your identity two ways:

  • Something you know – Your ID and password
  • Something you have – Your Duo enabled phone or tablet

    Who is required to use Duo for Two-Factor Authentication?

    Any University of Nebraska or State College employee that has access to sensitive information in Firefly/SAP or the Student Information System will be required to use Duo TFA before accessing the system.


    I use a token for my campus VPN. Will this work with TrueYou Duo?

    No, the token is tied to the campus Duo for use with VPN and will not work to authenticate with TrueYou Duo.


    What if I lose my phone?
    Contact your campus or college helpdesk immediately if your phone is lost or stolen. The Helpdesk will disable it for authentication and assist you with registering another device. It is always encouraged to have more than one phone number or device registered for use with Duo.


    I have previously enrolled in TrueYou Duo, but I am unable to click on My Settings & Devices link even though I receive an auto-push for authentication on my phone.
    If you enabled the option to automatically send you an authentication request via push or phone call, you will need to cancel the push or phone call in progress before you can click the "My Settings & Devices" link.


    I am going to be traveling abroad. How can I continue to use Duo?
    In a perfect situation where you have Internet access, and the Duo mobile application is installed, activated and running on your mobile device, the Push method is best. If you don’t have Internet access, you will still be able to receive a phone call from Duo to verify your authenticity. If your phone is on airplane mode (no Internet access or phone service), you can still authenticate using a Duo passcode by pushing the key symbol on the Duo mobile app screen to get a passcode which you can enter.


    Do I need a smartphone to use Duo?
    A smartphone is the best choice since it provides the greatest level of security and allows you to use the Duo mobile app. The app generates passcodes for login and can receive push notifications for easy, one-tap authentication. However, a smartphone is not required to use the service since you can also use a landline.


    I don’t have a smartphone. Will I be able to use Duo on my regular phone?
    Yes, any cell phone will work, but it will not include the advantages of the Duo mobile app (passcodes, prompts, etc.) and may result in regular cell phone charges in order to call back and authenticate (depending on your phone service).


    Can I use a landline at my office instead of my personal phone?
    You may use a landline instead of a mobile device; however, you will only be able to use Duo at your office or wherever the landline is located.


    Can I use multiple phones for Duo access?
    Yes, you can set up Duo access on multiple mobile devices (phones, tablets, etc.)


    Can I change to a different phone with a different number after I have set up Duo?
    Yes, you can change to a different phone with a different number, but you will need to reactivate Duo on the new device. If it’s a different type of device (Android to iPhone, for example), then you will need to make sure that you select the new phone type before reactivating.


    Does the Duo mobile app access other apps or data on my phone?
    No, it doesn’t not access your other apps or other data on your phone. It uses some base functionality of the phone and a certificate that identifies your phone to ensure accurate identification.

    What do I do if I’m in a location with poor cell coverage?
    In cases where cell coverage is not available, use the Duo mobile app to generate a passcode by pushing the key symbol on the Duo mobile app screen. If you’re not using a smartphone (and therefore do not have access to the app), then generate passcodes in advance.