What is two-factor authentication? Most of us use it every time we withdraw funds from an automated teller machine. The two factors required for an ATM transaction are the person’s personal ID number (something the person knows) and the ATM card (something the person possesses).

The NetIDplus initiative refers to the two-factor authentication system here at UT Dallas, where the two factors are your NetID password plus a mobile device, such as a smartphone or tablet. For users without access to mobile devices, alternatives are available.

This short video is designed to help you understand the log-on process using NetIDplus two-factor authentication. The video is provided by Duo, the software vendor that powers two-factor authentication at UT Dallas.

What are the benefits of using NetIDplus?

  • Greater protection of UT Dallas systems.
  • Reduced risk of criminals using your NetID account to perform harmful activities.
  • Compatibility with a wide variety of mobile devices.
  • Multiple log-on options even when wireless signal is weak or you are traveling.
  • Compliant with UT System requirements.
To better understand when you will use NetIDplus, please see the table and frequently asked questions below and contact [email protected] if you have questions.





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How do I get started with NetIDplus protection?

To begin using NetIDplus, you will visit the NetID management page by logging into There, you will find the option to enroll a mobile device or setup automated calls to a landline phone number.

Do I have to use a mobile device to gain NetIDplus protection?

NetIDplus protection is powered by Duo software. Duo offers several methods to protect you, including a mobile device app, SMS text message, and automated voice phone call options. UT Dallas users are not required to own a mobile device to enjoy NetIDplus protection, but this is the most convenient option and the one that most users prefer.

When I try to set up NetIDplus, the system does not recognize my UTD-ID. Where can I find my UTD-ID?

Many users have had the same confusion when first setting up NetIDplus and enrolling a mobile device for the first time. Check your UTD Comet Card to locate your UTD-ID. If the number on your Comet Card only has 8 digits, you will need to add 20 in front of your UTD-ID when you enter it.

For example, if the number on your Comet Card is 12345678, you will enter 2012345678 in the UTD-ID field.

Do I have to use my personally owned mobile device?

UT Dallas users are not required to have a mobile device to get NetIDplus protection, but this is the most convenient option which most users prefer. Today, many UT Dallas users already check work email from a personally owned mobile device. Just as email can use a portion of your data plan, using the Duo software will consume data, though it will be relatively small. Users who are not comfortable using a personally owned mobile device have other options, such as a small hardware device that attaches to a keychain. UT Dallas users connecting to email, Duo, or both UT Dallas services from a mobile device should enable a screen lockout password to protect the device if lost or stolen.

Does UT Dallas gain control of my personally owned mobile device if I participate in NetIDplus?

The NetIDplus initiative is powered by Duo software developed and published by a contracted third party. By installing the application on your mobile device, you do not provide UT Dallas with any additional ability to access your device or monitor your personal activity. Though most users prefer the convenience of the installed application, Duo offers several other methods including SMS text message, and automated voice phone call options.

Can Duo be used with online services at other organizations?

There are other organizations that are using Duo software for two-factor protection and their websites are also compatible with the one Duo application on your mobile device. For example, Duo protection is currently available for Facebook, Google, and Amazon Web Services.

When will I be required to sign up for NetIDplus?

Some users sign up for NetIDplus protection as they need it, depending on the systems they plan to access. Other users do not sign up for protection until they have a need. For example, if you use VPN, you will need to activate Duo. If you do not have a need for VPN, you may not need to participate in NetIDplus for the foreseeable future.

What happens if my mobile device prompts me and I am not trying to log into a UT Dallas system protected by NetIDplus?

When you attempt to connect to a system protected by NetIDplus, you will be prompted on your mobile device, which serves as your second factor. If you receive unexpected prompts when you are not trying to log in to a UT Dallas application, the NetIDplus architecture has worked and your account has been protected. You should report such unexpected mobile device prompts to the Information Security Office.

If I am concerned that NetIDplus will not be compatible with my work at UT Dallas, does this policy apply to me?

In certain instances, the Information Security Office may consider exemptions to avoid system incompatibilities or work disruptions. Submit a request to the chief information security officer using the online form available within

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