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Updating Your MFA Authentication Method

If you need to update your MFA verification method, you can easily do so by following these steps. Please be aware that you will still need to have access to your previous verification method in order to make this change. For example, if you chose to use the Authenticator app, you will receive an MFA prompt through the app that you will need to approve in order to proceed.


  1. After signing in to Office 365 ( or, click the settings icon in the upper-right corner of the window (mfa4).
  2. In the drop-down menu, select ‘Office 365’ under the ‘Your app settings’ section


  1. This will open a new tab. On the left side of the screen, select ‘Security & privacy’, then select the option ‘Update your phone numbers used for account security.’


  1. At this point you will be at the setup wizard and can follow the steps outlined in the section above titled “Setting up MFA” starting at step 3.
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