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

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.

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

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.

Apr 8, 2025 · While in Audit mode, Event ID: 45 will be logged on the domain controller when it receives a Kerberos authentication request with an unsafe certificate. The authentication …

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.

However, you receive the following error message: Unsupported server. The server you are trying to access is using an authentication protocol not supported by this version of Office. Solution A …

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.