Duo two-step login protects your personal information and the university's data by ensuring you are you when you login to your OSU account. It works because it relies on something that only you know (your password) and something that you have (a mobile device, hardware token, etc).
Two-step login, powered by Duo, protects your OSU account by verifying your identity with two forms of ID:
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:
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.
There are several available options for authenticating with Duo two-step login - you can use your mobile device, a hardware token or security key, or even Touch ID on compatible MacBook laptops.
The Duo Mobile app is the fastest and easiest way to use Duo, available for iOS and Android devices. This authentication method works by sending a "push" to your device to verify your login attempt.
If you have a MacBook laptop with a fingerprint reader and use Google Chrome as your web browser, you can use your laptop for Duo authentication. See if your device is compatible and add it as a Duo device.
If you prefer having a dedicated device for Duo, you can use a hardware token or purchase a security key.