Laptop fingerprint scanners usually work by just storing the windows password in the registry (under reversible encryption). I'm not sure that's really a securi

Laptop fingerprint scanners usually work by just storing the windows password in the registry (under reversible encryption). I'm not sure that's really a security enhancement. Example: http://arstechnica.com/security/2012/09/windows-passwords-exposed/ http://arstechnica.com/security/2012/09/windows-passwords-ex...