Duo Multifactor Authentication adds a second layer of security to your online accounts.

If you already have a phone number enrolled in Duo and need to activate the Duo Mobile app, text DuoMobile to 1-877-529-8585. Follow the SMS prompts to complete the activation process.

Articles (5)

Pinned Article Enrolling in Multifactor Authentication (Duo)

This article will guide Chico State users through choosing and setting up Duo multifactor authentication methods to ensure reliable and secure access to campus systems.

Authenticating using Duo Multifactor Authentication

This article will show you how to use Duo Mobile and hardware tokens to verify your identity through multifactor authentication (MFA) at Chico State.

Duo Mobile Update Requirements - February 2026

This article will explain the required Duo Mobile update, the impact of unsupported app versions after February 2, 2026, and the steps users must take to maintain access to Chico State systems.

Enabling Duo Restore & Backup

This article will cover backing up your Duo account and enabling Duo Restore for your Chico State Duo account.

Frequently Asked Questions about Duo Multifactor Authentication (MFA)

This article will help you understand, enroll in, and troubleshoot Duo Multifactor Authentication (MFA) used to secure Chico State accounts and systems.