Another problem with fingerprints being used for access is that whereas it is very difficult to force someone to divulge a string of characters stored in their head it is very simple to grab someone's hand and force it i=onto a fingerprint reader, therefore it is tricky for an attacker to access a password protected system even if they have the owner captive, but it is simple for them to make the owner use his fingerprints under duress.
A third problem (to add to the "can change a password, can't change a fingerprint" and "fingerprints can easily be forcibly obtained" arguments) is that a fingerprint can also be obtained, as mremski mentions, with fine powder and tape, so someone using a fingerprint as their password would want to wear gloves everywhere they went for fear that every surface they touched would give away their "password", no such problem exists with passwords stored in the head.
Edited by rp88, 03 September 2015 - 02:15 PM.
Back on this site, for a while anyway, been so busy the last year.
My systems:2 laptops, intel i3 processors, windows 8.1 installed on the hard-drive and linux mint 17.3 MATE installed to USB