How to Set up Microsoft 365 with two-factor authentication

Overview

In this article, you will learn how to Set up Microsoft 365 with two-factor authentication. Once your admin enables your organization, and your account, with multi-factor authentication (MFA) you have to set up your user account to use it.

Tip

Want to know more about multi-factor authentication? See What is: Multifactor authentication.

By setting up MFA, you add an extra layer of security to your Microsoft 365 account sign-in. For example, you first specify your password and, when prompted, you also type a dynamically generated verification code provided by an authenticator app or sent to your phone.

Set up Microsoft 365 sign-in for multi-factor authentication

  1. Sign in to your Microsoft 365 account. After you choose Sign in, you'll be prompted for more information.
  2. Choose Next.
  3. The default authentication method is to use the free Microsoft Authenticator app
  4. If you have it installed on your mobile device. 
  5. Select Next and follow the prompts to add this account. If you don't have it installed there is a link provided to download it.
  6. Next time you sign in to Microsoft 365, you'll be prompted to provide additional verification information, such as typing the verification code provided by your authenticator app or sent to you by text message.
Note

If you would rather use SMS messages sent to your phone instead, select I want to set up a different method. Microsoft 365 will ask for your mobile number, then send you an SMS message containing a 6-digit code to verify your device.

Download and install the app

Install the latest version of the Microsoft Authenticator app, based on your operating system:

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Updated on July 12, 2021
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