Phone Sign-In Beta, the Windows 10 Mobile versions of Microsoft’s Authenticator app has leaked in Windows 10 store. The app allows one to unlock one’s Windows 10 PC by using this app from the Phone. You need to do a Bluetooth sync before using it.
Phone Sign-In Beta Details:
This is a Beta version of the Authenticator app and is only intended for internal testing purposes. The first step towards a world without passwords!
After a quick Bluetooth sync, use this app to unlock your Windows 10 computer at work. Just open the app and tap on a nearby computer.
Note: This app is still in beta. Future versions will include support for Microsoft account, a sign-in solution for browsers and VPN, one-time passcode generation, and MFA approval through notifications.
Thanks IMIEN for the tip. Cheers!!