OK, imagine a computer virus. Imagine a computer virus that searches your computer for .exe, .mp3, and .jpg files. Imagine a computer virus that searches your computer for said files - and has an embedded bittorrent client. Imagine a computer virus that seeds all your .exe, .mp3, and .jpg files on an embedded bittorrent client. Imagine all the people with pirated software, pirated MP3's, and illicit pornography on their hard drives...
See where I'm going???
