November 2, one of the important day in the computer virus world. In 1988 November 2nd, the Morris worm was released by its author, Robert Tappan Morris. It was the first worm to get wide media attention.
The wikipedia says "According to its creator, Robert Tappan Morris, the Morris worm was not written to cause damage, but to gauge the size of the Internet. It worked by exploiting known vulnerabilities in Unix sendmail, finger, and rsh/rexec, as well as weak passwords."
|Source of the image is wikipedia|