> Windows Hello for Business does support MFA, in that it takes 2 factors to set it up. If uses MFA for device enrollment. Beyond that, it does not use MFA. For example, you can not protect a Windows 10 workstation using Microsoft Authenticator - a second authentication source. Allowing only a single authentication method - such as PIN - is not two-factor authentication. It is no better than a password, and in many cases worse, since a PIN is typically weaker than a password.
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