eWeek has a very interesting slide show "The Security of Biometrics: Two Screws and a Plastic Cover" which I strongly recommending viewing. The slide show shows, step by step, how to hack a biometric system.
One of the weak spots in many biometric systems is the use of Wiegand protocol. As the slide show says "The Wiegand protocol is, Franken said, a) in plain text, b) easily intercepted, c) easily replayed, d) includes output from biometric readers, and e) includes output from even strong crypto contactless smart card readers. This means the output, including all data pertaining to a card holder, can be captured on a hacked system."
Security is only as strong as the weakest link.
Guy
www.authenticationworld.com
guy.huntington@authenticationworld.com
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