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David Smith. A common enough name, but in the word of viruses, Smith is notorious for one achievement -- the release of the Melissa worm, which was the first successful email-distributed infection of its kind.
Based on a Microsoft Word macro, the virus 'Melissa' -- apparently named after an exotic dancer -- was released into the wild through the Usenet discussion group alt. sex.
The virus worked by asking email recipients to open a document with a message such as 'Here is the document you asked for'. After opening, the virus replicated itself and spread through the first 50 email address contacts in the victim's address book.
According to statements released by the FBI, the Melissa virus "wreaked havoc" on governmental networks, and for some companies, email platforms were frozen until the virus was controlled due to the rapid increase in traffic. Smith was eventually given a 20-month jail sentence, a fine of $5,000 and was barred from computer network access without authorization.