Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
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I have recently lost my phone and want to log back into Outlook on my new device. It asks me to enter the code displayed on my authenticator device which does not appear despite showing me that I am signed in. How do I add multi-factor authentication so I can access my account another way?
Go to the Microsoft account recovery page (https://account.live.com/acsr) on your new device or computer.