THE IT INDUSTRY spends a huge amount of money on security -- and yet worms, spyware, and other relatively mindless attacks are still able to create massive havoc. Why? Marcus Ranum suggests that we've all been spending far too much time and effort on provably ineffective security measures. It may come as a surprise that anti-virus software, penetration testing, and user education are three of The Six Dumbest Ideas in Computer Security.
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