Multi Factor Authentication (MFA) – also known as Two Factor Authentication (2FA) or 2-Step Verification – provides more security for your accounts and organisation. You can set up your mobile device to act as a key to protect your accounts, by responding to a notification or generating a 6-digit code, in addition to your password.

You can:

Microsoft recommend using their own Microsoft Authenticator app with Microsoft 365, but you can use others if you prefer/require – other apps follow a similar method to the below but may differ slightly. Click “I want to use a different authenticator app” at the first stage of the setup process to use a different app.

How to set up MFA using Microsoft Authenticator app

  1. When you sign in to office.com, you'll see a More information required prompt. Choose Next.

    <aside> 💡 If you don’t see this prompt because your organisation’s MFA deadline has not yet passed and/or you wish to add another MFA method: a. Visit this link aka.ms/mfasetup and choose Add sign-in method. b. Under Add a method, choose Authenticator app from the drop-down list and click Add. c. Continue with the instructions below.

    </aside>

  2. On your mobile device, either open your existing authentication app or go to your app store to find one, install it, and open it.

  3. If this is your first time using the authentication app, follow the prompts to complete any initial setup, including:

    1. Choose Allow if prompted to allow access to the camera in order to scan codes
    2. Choose Allow if prompted to allow notifications so you can respond to log in attempts
    3. Choose Allow
  4. In your authentication app, tap the plus (+) sign in the top right to add a new account and choose Work or school account then choose Scan QR code

  5. On your PC, under Keep your account secure, click Next to reveal a QR code and use your mobile device to scan it

  6. On your PC, click Next and enter the number it shows on screen into the prompt that will appear on your authentication app on your phone

  7. Once this is approved, click Next on your PC to finish setting up your MFA method using Microsoft Authenticator.

  8. Depending on your organisation’s settings, you may be asked to add an additional method such as a mobile number or email address. Follow the instructions on your PC to provide a number/email via which you will receive a code, and then enter that code into the setup window on your PC to complete the process.