Set up the Microsoft Authenticator app as your verification method
https://support.microsoft.com/en-us/account-billing/set-up-the-microsoft-authenticator-app-as-your-verification-method-33452159-6af9-438f-8f82-63ce94cf3d29
WEBSet up the Microsoft Authenticator app as your verification method - Microsoft Support. You can follow these steps to add your two-factor verification and password reset methods. After you've set this up the first time, you can return to the Security info page to add, update, or delete your security information.
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