What is: Multifactor Authentication - Microsoft Support
Multifactor authentication is a way of confirming your identity when you sign into online accounts with more than just a username and password. Learn how it works, why it's important, and how to enable it for your Microsoft account and other services.
Set up the Microsoft Authenticator app as your verification method
Learn how to set up the Microsoft Authenticator app as your security info method for two-factor verification and password reset for your work or school account. Follow the steps to download, install, scan, and test the app, or manually add the code and URL.
Change your two-step verification method and settings
Learn how to update your security verification methods for your work or school account, such as the Microsoft Authenticator app. Find out how to add, delete, or manage your devices and app passwords for two-factor verification.
Sign in to your accounts using the Microsoft Authenticator app
The Microsoft Authenticator app helps you sign in to your accounts if you use two-factor verification. Two-factor verification helps you to access your accounts more securely, especially while viewing sensitive information. Because passwords can be forgotten, stolen, or compromised, two-factor verification is an additional security step that ...
Download and install the Microsoft Authenticator app
Learn how to download, install, and set up the Microsoft Authenticator app to sign in to your accounts more securely. The app supports phone sign-in, code generation, and two-factor verification with your password and device.
Use Microsoft Authenticator with Microsoft 365
If your organization is using multi-factor authentication (MFA) for Microsoft 365, the easiest verification method to use is the Microsoft Authenticator smart phone app. It's just one click instead of typing in a 6-digit code. And if you travel, you won't incur roaming fees when you use it. Download and install Microsoft Authenticator app
Applies To:
Office for business, Microsoft 365 admin
Set up an authenticator app as a two-step verification method
You can set up an authenticator app to send a notification to your mobile device or to send you a verification code as your security verification method. You aren't required to use the Microsoft Authenticator app, and you can select a different app during the set up process. However, this article uses the Microsoft Authenticator app.
Sign in to your work or school account using your two-step verification ...
Sign in to an application or service such as Microsoft 365 using your username and password. Microsoft sends a notification to the Microsoft Authenticator app on your device. Open the notification on your phone and select the Verify key. If your company requires a PIN, enter it here. You should now be signed in.