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Duo Resources
Sacramento State uses Duo two-factor authentication to protect your identity, prevent financial aid scams, and guarantee secure access to the campus services you log into every day – like Canvas, My Sac State, Microsoft 365, and your SacLink email to name a few.
Verifying your identity using a second factor (like your phone or other mobile device) prevents anyone but you from logging in, even if they know your password. The Duo app makes this process simple as we all usually carry a smart phone with us so you can authenticate anywhere.
Duo 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.
Mobile Device Security & Duo Flooding
Duo is one of many ways you can protect your device - and the data you access with it.
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:
- Press the deny button, then click "yes" to report it as a suspicious login.
- Change your password ASAP to something completely different at password.csus.edu
Learn more tips and recommendations about mobile device security: