Microsoft has announced the Global Availability of Phone Sign in for Microsoft accounts !
This is a new way to sign in using your phone using a fast and secure way.
“This process is easier than standard two-step verification and significantly more secure than only a password, which can be forgotten, phished, or compromised. Using your phone to sign in with PIN or fingerprint is a seamless way to incorporate two account “proofs” in a way that feels natural and familiar.”
Also published on Medium.