Access "Schneier-Ranum Face-Off on whitelisting and blacklisting"
This article is part of the January/February 2011 issue of Cloud initiatives are changing roles for information security managers
Point: Marcus Ranum In 2007, I wrote an article on execution control in which I explained why antivirus was a dead-end idea, and predicted an eventual switchover from blacklisting to whitelisting. I couldn't have been more wrong so I periodically catch myself wondering if I'm one of a small percentage of the people who "get it," and if the entire security world has its collective head where the sun doesn't shine. Obviously, malware is a big problem and there's not going to be a silver bullet solution to it, but the industry's response to system integrity continues to be ineffective, expensive and a wasteful of time and energy. To briefly recap: blacklisting is the oldest algorithm in computer security. Know what's bad, develop a pattern-matching system to detect it, and ring a bell when you detect the pattern. You can earn extra credit for detecting the bad thing just before it happens, and preventing it from happening. In a nutshell, that's what's behind many antivirus, intrusion prevention/detection systems, and spam filters. The whitelisting approach is ... Access >>>
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