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| It Starts
1986 - First Virus
 | The Brain virus, created in Pakistan, was the first
virus found on IBM computers. This was a stealth virus that was
relatively harmless. It changed the volume label in the
computer. |
 | The first PC trojan also appeared this year. |
1990 - Numbers Increasing
 | This year, there were up to 500 known viruses |
 | The first polymorphic virus was also discovered this
year. It was the Chameleon. |
1999 - Macros and Worms
 | The Melissa virus was spread around the world in just
a few hours time. It was considered the fastest spreading virus
to date. It is a combination worm and macro virus. |
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