Re:Pin Bypass in Passwordless WebAuthn on Microsoft.com and ...
by sufficient on Wednesday August 12, 2020 @11:20AM
(#24132918)
I agree that it's weird that they fixed it and didn't consider it a security issue.
For the user it looked like it would provide two-factor authentication since the PIN is requested, while in reality it's not verified. Thus, they only provided one-factor security.
Seems like Microsoft doesn't like to pay for a bug bounty