The true computer parasite
Although frequently used as a catch-all term, the virus is of course only one form of malware, and other categories, such as worms and Trojan Horse programs, had already emerged long before Cohen's paper. However, it was with Cohen's work that the biological analogy first arose, and this has been a lasting contribution to the way in which much of the subsequent literature has considered malware in general (note: although Cohen authored the paper, it was actually his research supervisor, Prof. Leonard Adleman (the 'A' in RSA encryption), who suggested the use of the term 'virus').
By Dr. Steven Furnell and Dr. Jeremy Ward at SecurityFocus.
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