This step-by-step guide walks you through how to enroll and manage devices in Duo Security to use 2-Step Login.

1. Go to the Duo Enrollment and Device Management Site

Navigate to


2. Enroll Your Device

Before you can begin using Duo, you must enroll your device. Click Start Setup to begin the enrollment process.

3. Choose Your Authentication Device Type

Select the type of device you'd like to enroll and click Continue. We recommend using a smartphone for the best experience, but you can also enroll a landline telephone, or iOS/Android tablets.


4. Enter Your Phone Number

Select your country from the drop-down list and enter your phone number. Use the number of your smartphone, landline, or cell phone that you'll have with you when you're logging in to a Duo-protected service. You can enter an extension if you chose "Landline" in the previous step.

Double-check that you entered it correctly, check the box, and click Continue.


5. Choose Platform

Choose your device's operating system and click Continue.


6. Install Duo Mobile

Duo Mobile is an app that runs on your smartphone and helps you authenticate quickly and easily. Without it, you will still be able to log in using a phone call or text message, but for the best experience, we recommend that you use Duo Mobile.

Follow the platform-specific instructions on the screen to install Duo Mobile. After installing the app return to the enrollment window.

If you are enrolling a landline you do not have to install the app.


7. Activate Duo Mobile

On iPhone, Android, and Windows Phone activate Duo Mobile by scanning the QR code with the app's built-in barcode scanner. Follow the platform-specific instructions for your device:


8. Your device is now registered.

Select the authentication method for access to applications requiring 2-Step Login. We recommend choosing “Ask me to choose an authentication method” to start with. Once you’ve used the Duo app a few times, you can change the setting to suit your preference.