The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Learn how you can use the free Microsoft Authenticator app to sign in to all your accounts without using a password.

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.

Learn how to add all your different accounts to the Microsoft Authenticator app.

Conveniently and securely sign in to all your online accounts using multifactor authentication, passwordless sign-in or password autofill with Microsoft Authenticator.

When App Lock is enabled, you'll be asked to authenticate using your device PIN or biometric every time you open Authenticator. App Lock also helps ensure that you're the only one who …

Outdated app version: Using an outdated version of the Microsoft Authenticator app can cause issues. Make sure you have the latest version installed. Network issues: If your device is not …

Note: For information about signing in using the Microsoft Authenticator app see the article, Sign in to your accounts using the Microsoft Authenticator app.

Learn how to use Azure Authenticator with Microsoft 365. It makes 2-step verification really easy!

If you turn on two-step verification, you'll get a security code to your email, phone, or authenticator app every time you sign in on a device that isn't trusted.