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 reinstalled Authenticator app on my phone, but even though my passwords appear in the app thanks to the security copy, can’t find any of the accounts that I used to access with Authenticator, and can’t access the authenticated apps since I can’t get the codes that Authenticator gave to open them.