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18 Jul 2013
Arthur in L.A. asks:
Why do online accounts like the one at my alarm company keep adding extra security questions? The choices always require either a subjective answer ("What's your favorite movie?") or, in a two-person household, more than one answer ("In what city did your parents meet?")We all know that passwords are a terrible security mechanism. People forget them, and bad guys are ever better at guessing them. So there are basically three ways to authenticate a person: something you know, such as a password, something you have, such as a driver's license, and something you are, a biometric. Two-factor authentication schemes are much more secure than single factor.
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