How to Change Your Microsoft Authenticator Phone Number

Learn how to switch your Microsoft Authenticator app to a new phone number in simple steps.

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To change Microsoft Authenticator to a new phone number, follow these steps: 1. Open the Microsoft Authenticator app on your old device. 2. Go to 'Settings' and select 'Backup' to save your accounts. 3. Install the app on your new phone, and log in to restore your accounts from the backup. 4. Go to the 'Security info' page on your Microsoft account and update your phone number under 'Authenticator app'.

FAQs & Answers

  1. How do I back up my accounts in Microsoft Authenticator? Open the app, go to 'Settings', and select 'Backup' to save your accounts on your old device before switching.
  2. What do I do if I lose my old phone with Microsoft Authenticator? You can restore your accounts on a new device using your backup if you've previously set it up.
  3. Can I use Microsoft Authenticator without internet? Yes, Microsoft Authenticator can generate codes offline, but you need internet access for backup and account updates.

Watch More

For more tips on mobile app security and managing your online accounts, check out our other guides on Microsoft account settings and security best practices.

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