Microsoft 365: Setting Up Multi-Factor Authentication

Updated on
January 13, 2023

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Multi-factor authentication (MFA) is a security feature that provides an additional layer of protection for user accounts in Microsoft 365 (M365). This guide will walk you through the steps of setting up MFA for a user in M365.

Step-by-Step Guide:

  • Sign in to the Microsoft 365 admin center using your admin credentials.
  • In the navigation pane, select Users.
  • Select the user for whom you want to enable multi-factor authentication.
  • In the user's account page, select More options and then select Manage multi-factor authentication.
  • On the Manage Multi-Factor Authentication page, select the Enable multi-factor auth button.
  • Confirm the action by selecting the Yes button in the dialog box.
  • If the user has not yet registered for multi-factor authentication, they will be prompted to do so. They will need to provide a phone number to receive a verification code via text message or phone call.
  • Once the user has registered and verified their phone number, they will be prompted to set up an app password for any apps that do not support multi-factor authentication.
  • The user will now be prompted to set up their preferred MFA method, such as using the Microsoft Authenticator app or receiving a phone call or text message.
  • Once the user has set up their MFA method, they will be required to use it for verification whenever they sign in to their M365 account.

In summary, Setting up Multi-Factor Authentication in M365 involves enabling the feature for a user, registering the user for MFA, and setting up their preferred MFA method. This adds an additional layer of security for the user's account by requiring multiple forms of verification for login.