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21C3: The Usual Suspects

21st Chaos Communication Congress
December 27th to 29th, 2004
Berliner Congress Center, Berlin, Germany

The European Hacker Conference

The Chaosknoten: the Logo of the Chaos Computer Club

The 21st Chaos Communication Congress (21C3) is a three-day conference on technology, society and utopia. The Congress offers lectures and workshops on a multitude of topics including (but not limited to) information technology, IT-security, internet, cryptography and generally a critical-creative attitude towards technology and the discussion about the effects of technological advances on society.

The Chaos Communication Congress is the annual congress of the Chaos Computer Club e.V. (CCC). The Congress has established itself as the "European Hacker Conference" bringing in people from all over Europe and even further away.

The congress not only addresses the techno geek but also those who are interested in appliances and aftermathes. A part of the lectures will be held in English, the rest in German. The language used for each lecture is clearly marked in the conference program.

What's happening?

Photo of hall 1 at the 19th Chaos Communication Congress

As last year, the Congress takes place at Berliner Congress Center at Alexanderplatz in Berlin-Mitte. As usual, interesting lectures await you (in five tracks) and the Hackcenter - expanded by 50% compared to last year - is ready for trial and error.

Even more activities will be provided in the additional workshop room and the lecture series of the Haecksen, our female hackers. Art & Beauty is coming back and promises a lot of fun. In addition, the 8th German Championship of Lockpicking is part of the Congress as well. Have a look at the overview for more activities at the Congress. A time table for our lectures can be found at the Fahrplan

There is additional information for members of the press.

What can I do?

Bring on your projects, show us your work. Learn and share alike and if you have something interesting to tell, apply for a lecture or workshop.

The Congress is a volunteer-driven event. In order to keep the event cheap for everybody, we do appreciate any kind of support. If you want to help, please apply as a Chaos Angel.

If you want to contribute a lecture or have an idea for some other interesting event that might fit our program, consult our Call for Papers for information on how to submit your idea.

Contact 21C3 Abuse Handling

If you experience network security problems that are clearly originating at the 21. Chaos Communication Congress network, please contact us at the number below. We will immediately try to resolve the problem by technical measures on our site. This number is ONLY for the purpose of reporting serious network security problems, all other requests will NOT be answered at this number.

21C3 Network Abuse Contact: +49 (30) 72622-42.

For general contact information (press, general Information etc.) use our general contact information.


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