How to use the Microsoft Authenticator app

About the Microsoft Authenticator app

How to sign-in without a password

The Microsoft Authenticator app helps you prove your identity without you needing to remember a password. Instead of a password, you sign-in with your username and then you use your mobile device with your fingerprint, face, or PIN to confirm that you are in fact, you. This two-factor verification method is considered more secure than just a password, especially while viewing sensitive info.

Microsoft Authenticator app and two-step verification

How the authentication app works with two-step verification

The Microsoft Authenticator app can also be used if you configure your account to prompt you for a second verification method after you sign in with your username and password. Two-step verification is an additional security step that helps protect your account by making it harder for other people to break in.

  • For a work or school account, you don't usually get to choose this feature for yourself. Instead, a security administrator opts in on your behalf and then notifies you to register verification methods for your account. If this scenario applies to you, learn more in What does Azure Multi-Factor Authentication mean for me.
  • For a personal account, you need to set up two-step verification for yourself. If you have a Microsoft account, those steps are available in About two-step verification.