Duo Multi-Factor Authentication

Duo is a multi-factor authentication tool chosen by Towson University to prevent data breaches, and to prove that you are you. This page provides self-help resources for using Duo at TU.

This service and vendor documentation are cloud hosted. Updates are not controlled by Towson University. TU-specific documentation is reviewed quarterly to bring it into alignment with the most recent version of the service or software.

Duo MFA: Project Underway

About the Project

Starting Oct. 16, faculty and staff will be required to enter a four-digit code when prompted using Duo to access TU resources. This project also includes expanding Duo for other TU systems (for faculty/staff) and updating the Single Sign-On experience with a new look. 

Key Benefits

The overall effort modernizes TU’s Single Sign-On (SSO) process, enhances security capabilities, improves the digital experience and streamlines systems and lays the foundation for future Duo enhancements.

High-Level Timeline



What is Duo Multi-Factor Authentication (Duo)?

Duo is a security method that requires a second form of identification to help you securely login to systems the university wants to strongly protect. This proves you initiated the login by providing a randomized, automatically generated number that authenticates you for a single login session.

Who uses Duo at TU?

All current faculty and staff are required to use Duo when using their NetID to access certain TU resources and authenticate their identity using both their password and enrolled mobile device. Students, student employees, retirees and Guest NetIDs are not eligible to use Duo at this time, except for accounts identified with access to confidential or sensitive information.

Services requiring Duo

Services include, but are not limited to Blackboard, Microsoft 365, Omni CMS, Panopto, PeopleSoft HCM, Remote Desktop, Salesforce, Stratus Financials, Taleo, Towson Online Services and Zoom. This list is subject to change.

Get started

Use the NetID Management System to enroll, or manage Duo devices, hardware tokens, and emergency passcodes.

Duo and NetID Management

Self-Help Resources

Frequently Asked Questions

You can use the Duo mobile app (available for smartphone or tablet) to generate passcodes even if you don't have an Internet, Wi-Fi, or a cellular connection.

The most common reason for your account to be locked out is from multiple incorrect NetID password attempts or multiple failed Duo login attempts in a row. Wait for your NetID and your Duo access to both automatically unlock after 10 minutes, or contact the OTS Faculty/Staff Help Center at 410-704-5151 for assistance.

You can select the "Remember Me" option. This allows Duo to remember you, lessening the number of prompts you receive. You must be authenticating on the same computer/browser and must not clear browser cookies. 

You do not need to have a mobile device to use Duo. Landlines (like an office or home phone) can be used to authenticate via a phone call. In limited circumstances, a hardware token (a small electronic device that may be attached to a keychain and generates a passcode) can be requested by contacting the OTS Faculty/Staff Help Center.

Yes, the Duo mobile app is free. However, the Apple App Store requires payment information on record even when downloading a free app.


For additional assistance with Duo, submit a TechHelp service request, or contact the OTS Faculty/Staff Help Center.