Mikko Hypponen: Fighting viruses, defending the net July 20, 2011

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http://www.ted.com It's been 25 years since the first PC virus (Brain A) hit the net, and what was once an annoyance has become a sophisticated tool for crime and espionage. Computer security expert Mikko Hyppönen tells us how we can stop these new viruses from threatening the internet as we know it.

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