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Turning on multi-factor authentication for Microsoft 365

Set up the approve-on-your-phone prompt that stops a stolen password being enough.

Call (07) 5619 6555

Multi-factor authentication means a password on its own will not get anyone into your account. It is the single most useful thing you can switch on, and it takes a few minutes.

Step by step

  1. Open your security settings. On a computer, go to aka.ms/mfasetup and sign in with your work account.
  2. Add a method. Choose Add sign-in method and pick Microsoft Authenticator. It is faster and safer than a text message.
  3. Install the app on your phone. Install Microsoft Authenticator from the App Store or Google Play and open it.
  4. Scan the code. Back on the computer, follow the prompts until a QR code appears, then scan it with the Authenticator app.
  5. Approve the test. The computer shows a number. Type it into the app when prompted to confirm the link works.
  6. Add a backup method. Add your mobile number as a second method, so a lost or flat phone does not lock you out.

If it does not go to plan

  • You get prompts you did not ask for: do not approve them. Someone has your password. Change it and tell us straight away.
  • New phone: set up the Authenticator app on the new phone before wiping the old one, or contact us to reset it.

Still stuck?

Call us on (07) 5619 6555 or start a remote support session and an engineer will take a look. Screens move around between app versions, so if what you see does not match these steps, that is usually why.

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