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

This is called two-step verification or multi-factor authentication. 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 …

Wondering what multifactor authentication, sometimes known as two step verification, is? This article will explain it clearly.

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 your organization supports two-factor verification or multi-factor authentication sign-in, you can set up your work or school accounts to use Authenticator as one of the verification methods.

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.

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

This articles contains information for customers who need to provide multi-factor authentication to help ensure their online purchases are secure.

Learn how to fix email issues for error code 5.7.515 when sending email to Outlook.com (the sending domain does not meet the required authentication level).

Learn how to set up your user account for multifactor authentication with Microsoft 365.