Virus Bulletin came up with some interesting historical facts. In 1989, when the very first Virus Bulletin rolled off the press (produced in a black-and-white, printed pamphlet style), there was only one subscriber and there were only 14 viruses known for the IBM PC. Five years on in 1994 there were over 3,000 viruses known to researchers, and here are the approximate numbers from there on out.

 

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