This content is intended for users. If you're an administrator, you can find more information about how to set up and manage your Azure Active Directory (Azure AD) authentication environment in the administrative documentation for Azure Active Directory.
If you're having issues signing in to your account, see When you can't sign in to your Microsoft account for help. Also, you can get more info about what to do when you receive the “That Microsoft account doesn't exist” message when you try to sign in to your Microsoft account.
The Microsoft Authenticator app helps you sign in to your accounts when you're using two-step verification. Two-step verification helps you to use your accounts more securely because passwords can be forgotten, stolen, or compromised. Two-step verification uses a second step like your phone to make it harder for other people to break in to your account. You can use the Authenticator app in multiple ways:
Two-step verification: The standard verification method, where one of the factors is your password. After you sign in using your username and password, you can either approve a notification or enter a provided verification code.
Phone sign-in. A version of two-factor verification that lets you sign in without requiring a password, using your username and your mobile device with your fingerprint, face, or PIN.
Code generation. As a code generator for any other accounts that support authenticator apps.
Authenticator works with any account that uses two-factor verification and supports the time-based one-time password (TOTP) standards.
Your organization might require you to use the Authenticator app to sign in and access your organization's data and documents. Even if your user name appears in the app, the account isn't set up as a verification method until you complete the registration. For more information, see Add your work or school account.
Download and install the app
Install the latest version of the Authenticator app, based on your operating system:
Google Android. On your Android device, go to Google Play to download and install the Authenticator app.
Apple iOS. On your Apple iOS device, go to the App Store to download and install the Authenticator app.
Important: If you're not currently on your mobile device, you can still get the Authenticator app if you send yourself a download link from the Authenticator app page.
Set up two step verification on Authenticator
To secure your account, the Authenticator app can provide you with a code you provide additional verification to sign in. No need to wait for texts or calls. The following instructions ensure only you can access your information.
Install the Authenticator app
To install the Authenticator app on an Android device, scan the QR code below or open the download page from your mobile device.
2. To install the Authenticator app on For iOS, scan the QR code below or open the download page from your mobile device.
Set up the Authenticator app
After you install the Authenticator app, follow the steps below to add your account:
Open the Authenticator app.
Select (+) in the upper right corner.
Point your camera at the QR code or follow the instructions provided in your account settings.
After your account appears in your Authenticator app, you can use the one-time codes to sign in. For more information and support on the Authenticator App, open the Download Microsoft Authenticator page.
Set up security info to use text messaging (SMS). Enter your mobile device number and get a text a code you'll use for two-step verification or password reset.
Set up security info to use phone calls. Enter your mobile device number and get a phone call for two-step verification or password reset.