Technologies created by (evil) hackers
cruise02: Probably not exactly what you're looking for, but anyone who worked on cryptography back in the 1970s (and who wasn't working for their government) was being fairly subversive.  Steven Levy wrote a great book about the people involved called Crypto: How the Code Rebels Beat the Government Saving Privacy in the Digital Age. http://www.amazon.com/Crypto-Rebels-Government-Privacy-Digit...