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.
Authenticator can be used three ways:
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As a way to verify sign inif you forget your password.
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As a way to sign every time, by using a one-time password code to increaseaccount security. This is called two-step verificationor multi-factor authentication.
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As the only way to sign in - just tap an approval on your phone to sign in. This is called going passwordless.
Just follow the three steps to start using Authenticator to sign in.
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