I don't know if this question has been directly asked and/or answered before. This question has been in the back of my head for a while now and I felt like asking.
What sparked the question was seeing this college chick on MSNBC getting busted for downloading mp3s off of Kazaa 6 years ago. She got a big fine, and being a poor college chick, she started crying, which was sensationalized to the extreme. You know how it goes.
But being a guy who has never used Kazaa before, what the hell was it and why was it so insecure? I'm thinking it was a website like Napster and logged ip addresses.