What is Duo?

Two-step login, powered by Duo, protects your OSU account by verifying your identity with two forms of ID:

• Something you know, such as your password.
• Something you have, such as a phone, hardware token or security key.

Learn more about how Duo works 

Why do I want it?

By protecting your OSU account with Duo, you can reduce the risk of someone gaining access to your account. If someone has access to your OSU account, they could:

• Change your financial aid direct deposit
• Commit identity fraud
• Read and send your email
• See student health records

Sign up for Duo 

How do I use it?

The Duo Mobile app for iOS and Android is the most popular option for authenticating with Duo. We also support hardware tokens, security keys and even Touch ID on some MacBook laptops.

Get help with Duo