The names roll of the tongue like characters in an episode of "American Gladiators." Klez. Blaster. Slammer. Sasser. Zotob. Computer viruses and worms, all targeting users of Microsoft Corp.'s Windows operating system.
The first sign of computer worm activity dates back to 1982, when a program called Elk Cloner squirmed through Apple II systems. The SCA virus and Brain, written for IBM PC compatibles and Amigas, would pop up in the late 1980s, followed by the Morris Worm, the first documented "in the wild" proof-of-concept that infected DEC VAX machines.
Those worms hardly registered on the mainstream media radar but, with the arrival of Windows 95, all that changed in a hurry. The computer world has never been the same.
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