Duo Multi-factor Authentication

Duo (formerly NetID 2-Step) is a secure multi-factor authentication method. Two steps are required for successful access. It is a safer way to log into most Texas State online services and adds an increased level of security for your account and Texas State confidential information.

  • Available to: Faculty, Staff, Students
  • Where to use: Online
  • Cost: Free

Many United States-based technology companies are beginning to enforce restrictions to their services in some areas of the globe as tensions rise between nations. In order to comply with U.S. regulations, these technology companies will begin blocking access from users whose IP address originates in a country or region subject to economic and trade sanctions enforced by the U.S. Office of Foreign Assets Control (OFAC).

Due to these requirements, Texas State University cannot guarantee the delivery of its IT services to individuals located in OFAC-restricted regions. A current list of restricted regions can be found on OFAC’s website; however, Texas State is presently aware of the following OFAC-restricted locations.

  • Cuba
  • North Korea
  • Syria
  • Sudan
  • Iran
  • Certain regions within Ukraine
    • Crimea
    • Luhansk
    • Donetsk
    • Sevastopol

This is an evolving situation and the number of technology companies enforcing these restrictions may increase in the coming days and weeks. The following IT services have publicly disclosed when enforcement of restrictions will begin:​​​​​​

  • Zoom – OFAC restrictions began as of 2/24/2022
  • Duo – OFAC restrictions to begin on 5/5/2022

We will continue monitoring this situation and will notify you if any additional IT services become restricted or interrupted. If you believe you are in one of the OFAC-restricted locations or have questions, please contact the IT Assistance Center.


More About Duo Multi-factor Authentication

How It Works

Two steps are required for successful access:

  • Something you know (NetID and password)
  • Something you have (mobile device, landline phone, or key fob)

Duo Mobile preferred method for logging in

With Duo Mobile, quickly approve a Duo request by tapping one button on your mobile device. Duo Mobile can also generate time-based one-time (TOTP) passcodes that users can type into their login prompt to complete the two-factor authentication process.

Passphrases + Duo 

Texas State has a 15-character minimum on new and reset passwords. The University recommends that you use a passphrase, which is a string of random, familiar words. Research shows a 15-character passphrase is easier for people to remember and harder for criminals and computers to crack. 

Once you are enrolled in Duo and have a 15-character passphrase, you will never need to change your passphrase again!  

You don’t have to wait. Act now to reap this benefit.  

  1. Students: Enroll in Duo and set a 15-character passphrase. If you already have a 15-character passphrase, you need only to enroll in Duo. 
  1. Faculty and Staff: Set a 15-character passphrase. If you already have a 15-character passphrase, you do not need to take any further action. 
  1. Any phrase will do if it is at least 15 characters.  

For instructions on setting a passphrase, visit the Passphrase Best Practices page on the IT Assistance Center (ITAC) website.