Using Duo is how you can protect your identity, prevent financial aid scams, and guarantee secure access to the campus services you use every day — like Canvas, My Sac State, Microsoft 365, and your SacLink email to name a few.

Duo Enrollment Guide

Authentication Methods

Duo Mobile App - Recommended

Duo prompts you to enroll the first time you log into a protected VPN or web application when using a browser or client application that shows the interactive Duo web-based prompt. Alternatively, you might receive an email from your organization's Duo administrator with an enrollment link.

Supported Browsers: Chrome, Firefox, Safari, Edge, Opera, and Internet Explorer 11 or later. Some browsers do not support all of Duo's authentication devices (for example, Security Keys won't work with Internet Explorer). For the widest compatibility with Duo's authentication methods, we recommend recent versions of Chrome and Firefox.

Alternative Methods

Don’t have a smart phone in order to use the mobile app, or want to discuss alternatives? Ask the IRT Service Desk Team about possible backup methods.

Manage my Devices (enroll, reactivate, edit or delete)

Mobile Device Security & Duo Flooding

Duo is one of many ways you can protect your device - and the data you access with it. Learn more tips and recommendations for mobile device security.

A scam you need to look out for is "Duo Flooding." If your Sac State account becomes compromised, hackers may attempt to send you Duo push notifications you didn't originate in the hopes that you'll accept and allow them to gain access to campus systems as "you." If you receive a Duo push notification you did not originate, follow these steps:

1. Press the deny button, then click "yes" to report it as a suspicious login.
2. Change your password ASAP to something completely different at password.csus.edu

How To's & Support

Duo Online Support

Contact the IRT Service Desk Team