10 of the worst moments in network security history

Spam, hackers, worms -- oh my! Events that shock sensibilities and shaped the future

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Cyberattack on Estonia: April 27, 2007 Estonia, a country of about 3 million people bordering Russia, has a well-developed network infrastructure that came under a crushing cyberattack that made its most important government, banking and media Web sites unavailable. Security experts analyzing the cyberattack believe it was triggered by the "Russian blogosphere," which triggered a second phase that included specially designed bots, dropped onto home computers. Some suspect the Russian government was involved, a charge dismissed by the Kremlin.

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10 of the worst moments in network security history

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