Multi-Factor Authentication

Duo Banner

The Duo Mobile app has a new look and features designed to improve the user experience. 

Multi-factor Authentication (MFA) adds a second layer of security to your SDSUid account. By verifying your identity using a second factor (such as your mobile device or a hardware token), MFA prevents anyone else from logging into your account, even if they know your password. To help keep SDSU users and data safe, the campus utilizes Duo's MFA solution.

Duo Mobile App Updates

Already applied? Review your next steps. The SDSU WebPortal is used to keep you informed of the current status of your application and admission.

An updated version of the Duo Mobile app was released for iOS and Android phones on Monday, Oct. 11. The Duo MFA authentication approval prompt has a new look!

What’s different in the new version? 

The Duo Mobile app has been redesigned to improve the login experience by:

  • Landscape View. The new user interface now includes a landscape view, variable font sizes, and improved color contrast.
  • End-user Support. The redesigned Duo Mobile app provides a new Call-to-Action area that guides users to self-remediate when they are in a known error state. 
  • Simpler Interface. The user interface makes it easier to find and manage your accounts with a simpler interface. 
  • Updated Approve/Deny Buttons, The position of the Approve / Deny buttons have been switched so that the  button is now on the right, which is a more natural location (see image below).

Old and New Duo Mobile Multi-factor Authentication Prompts

Duo Mobile App UpdateWhen the redesigned Duo Mobile launches, will I need to do anything?

It depends. If you’ve enabled automatic app updates on your device, Duo Mobile will update automatically. You can also manually update Duo Mobile from the Apple App Store or Google Play Store. 

Security Tips for Duo MFA

An unexpected MFA request is one you receive that was initiated by someone else trying to sign in as you. This could mean that your SDSUid username and password have been compromised. You should change your password immediately by going through the SDSUid Password change process.

Stay vigilant and only approve MFA requests you initiate yourself, knowingly and intentionally.

Depending on the authentication method, if you suspect you are receiving a fraudulent MFA request, hang up, deny the request, or do not enter the provided passcode. Then, report the fraudulent attempt IMMEDIATELY to [email protected].

Using the Duo Mobile app, Duo PUSH is convenient and fast. In addition, it is more secure than a phone call or SMS text message because it provides end-to-end encryption and displays detailed information about the application and source device that initiated the authentication request. Learn more about Duo PUSH.

Getting Started

It's simple to set up, follow these three steps to get started:


Duo MFA Resources

List of some of the major campus services and apps.

Find a training video that’s right for you.

Common Duo MFA issues and resolutions.

User Support

For Faculty and Staff

  • Information Technology User Services (ITUS) Help Desk - Faculty and staff can get help from your department IT support staff or ITUS at 619-594-5261.

  • Submit a Ticket - If you are having problems, please submit a ticket through SDSU ServiceNow.

  • Virtual FIT Center - Any faculty, staff, or student employee with a question or need of immediate assistance can visit the Virtual FIT Center at, M-Th, 8 am to 5 pm, and Friday 8 am to 4:30 pm.

For Students

Extra Resources