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Microsoft Authenticator helps you sign in to your accounts if you've forgotten your password, use two-step verification or multi-factor authentication, or have gone passwordless on your account.
If you have non-Microsoft accounts, such as for Amazon, Facebook, or Google, you can add them to Authenticator for two-step verification, or if your site or service supports adding an account using a QR code, you can set up Authenticator as a way to sign in.
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.
Microsoft Authenticator is a free app that helps you sign in to all your accounts without using a password - just use a fingerprint, face recognition, or a PIN. You can use Authenticator to sign in to your Microsoft personal, work, school or other accounts.
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.
On the Passwords tab in Authenticator, select Sign in with Microsoft and sign in using your Microsoft account. This feature currently supports only Microsoft accounts and doesn't yet support work or school accounts.
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
Two-step verification (sometimes called multi-factor authentication) helps protect you by making it more difficult for someone else to sign in to your Microsoft account. It uses two different forms of identity: your password, and a contact method (also known as security info).
To sign in using a verification code with the Microsoft Authenticator app. If you use the Microsoft Authenticator app to get verification codes, then when you open the app you see a number under your account name. This number changes every 30 seconds so that you don't use the same number twice.
Set up your device to work with your account by following the steps in the Set up my account for two-step verification article. Update your account and device information in the Additional security verification page. Perform the update by deleting your old device and adding your new one.
