, 2004-11-19
Bill Gates is right about one thing: asking people to use a two-factor form of authentication would go a long way toward alleviating a lot of the password problems that plague computer security today.
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1: What is its strength is also its weakness: You can't extend your privileges to others in case you are unable to use them yourself. Imagine you're in the hospital, and ask your wife and/or lawyer to get your email and certain documents for you. They can't, because they can't identify as you, and you can't identify yourself to extend the privilege to them.
2: Most important of all: You can *never* change your biometrics. That it's exceedingly difficult to fake a biometric signature doesn't make it impossible.
If your fingerprint or retina scan gets compromised, you can't change your biometric password, and you're scr*wed for the rest of your life. Unless you know a way to cut off your finger and grow a new one?
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Link to this comment: http://www.securityfocus.com/comments/columns/277/29177#29177