SIGINT is a conference on discourse in the digital age, brought to you by the Chaos Computer Club, one of the biggest and most influential hacker organizations in Europe. Its stated purpose is to bring together, surprise, and enlighten those interested in playful and clever interactions with computers, networks, art, politics, and society. SIGINT is about participation and making the world a better place. The conference takes place in Cologne, Germany, in close proximity to the Ruhr area in Western Germany and not far from the borders of the Netherlands, Belgium, and Luxemburg.
The Gpn is a yearly scene event in Karlsruhe. Hackers, crackers, geeks, nerds and other technology lovers meet there for three days and share ideas and source code. There's a conference track, nice ambiance and interesting people.