BioTrust replaces Windows’ own log-in dialog. The Enrollment Wizard uses a concept called “scenes,” where each scene is composed of multiple images of your face from different angles. BioTrust is sensitive to lighting: if you originally enrolled at night-time when your office was relatively dark, you may have trouble logging in during the day. The password manager doesn’t always work: The vendor claims to have tested it with 700 common Websites, but when I tried it with Fiverr.com, it did not offer to save my password.”]
Source: https://www.csoonline.com/article/2128819/with-biotrust–your-face-is-your-password.html