I think these features require dedicated API's or SDK's, and Apple stopped deploying them since it bought AuthenTec. decrypting the HD using my fingerprint, with no passwords to type) Can I use fingerprint login with FileVault 2 too? (i.e.How do I switch from password login to fingerprint login?.In particularly, supposed that I've gotten all the Smart Card Services/CAC Libraries: Please note that I've already read this article on StackExchange ( How can I enable fingerprint authentication on a Mac? What compatible scanners are available?) which talks about the same, but I've found nothing interesting in it. The scanner I'm willing to buy is a DigitalPersona U.are.U-5160 which is not only FIPS 201 PIV certified, but it's also designed to work in harsh environments and situations. I'm a hi-tech enthusiast who wants to use the fingerprint scanning feature made available by many scanners on the market to login into my account after boot and unlock the screen after the screensaver has started. I own a mid-2009 MBP with OS X Mavericks installed.