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Two-Step Login

Two-step login is now required for most online logins performed by students, faculty and staff.

New to UC San Diego - New Students and Employees Start Here

Click here to register your phone or other device. For more information and tutorials keep reading. 

Existing Users: Quick Help

Locked Out or Device Unavailable

Get help here if you're locked out of Duo or your device is not available. 

New Phone (with Same Number)

Got a new or upgraded phone with the same number and need to register it? Click here. 

The Basics

Learn how to use Duo Security to manage the two-step login process.

Step 1:

Log in as usual

Step 2:

Verify your identity




Get started in 3 easy steps:

  1. Decide which device(s) you'll use 
  2. Install the Duo app on your device, or request a token 
  3. Register your device with Duo (duo-registration.ucsd.edu) 



See how easy it is to register a device:



Student employees:

You may already be using Duo and two-step login if you're also a university employee and are accessing protected systems. If you have separate student and employee accounts, you may need to register each account for two-step login. Learn more.

More information and details: