Exciting news today. We just turned on FIDO2 support for Microsoft accounts. Now you can sign in to your Microsoft account without a password from any PC running the Windows 10 October 2018 update using a FIDO2 compliant device.
For all the details check out my blog. Also check out this blog post by Pamela Dingle, our Director Of Open Standards.
Best Regards, Alex Simons (@Twitter: @Alex_A_Simons) CVP of Program Management Microsoft Identity Division