TL;DR:

This year, the Heralds will once again guide you through the 39C3 program. Unlike previous years, there have been some changes.

Would you like to join the Herald team? Then please contact 39c3-heralds@cccv.de by December 1 with the following information:

• Which Herald category you see yourself in (experienced Herald/mentor, Herald mentee)
• Link to a recording of your moderation (if available)
• Language skills (de/en/fr)
• Preferred topics/tracks (e.g., security, hardware, politics & society, art & beauty)
• Availability (day x, mornings, afternoons, evenings, nights)

The Heralds …

You surely remember the two community stages at 38C3 and the great programme there, which was submitted by the community and curated by the habitats. There will be no community stages this year. Instead, we decided to add a new community track and a fourth stage to the main programme, and we also provide a further stage for talks in the context of Self-Organized Sessions.

Why did we make this change?

Short explanation: you were just too good!

Long explanation: The quality of the talks on the community stages was practically in no way inferior to those in the main programme. Looking back, we …

We’re happy to finally announce the presale for this year’s Chaos Communication Congress. It will work pretty much the same as last year:

We’ll again be using our system of replicating vouchers. The presale will run in two phases: the voucher phase and the open sale.
We’ll explain this as briefly as we can here. If you want to read more about it, we also have a documentation page available, where we’ll add more information in the coming days.

The voucher phase will run from 2025-10-21 until 2025-11-12 and works as follows:

• There is a fixed quota for this phase. Once this quota is …

Everybody remembers their first event shirt, proudly still worn in all its faded glory. From charming meetups with twenty people on rickety benches under disco lights in old factory lofts, to huge events with tens of thousands of kindred spirits: For almost thirty years, our event designs have provoked thought and played with ambiguity, have puzzled and delighted. A testament to almost thirty years of bursting community creativity, we now celebrate them with the first-ever CCC Design Archive.

With this archive, we aim to honour the work of the almost seventy designers and shine the spotlight …

We invite you to enrich our programme with your lectures and the 39C3 with music, art, and punk. The call for participation in four fields is now online.

The Chaos Computer Club (CCC) is inviting to the 39th Chaos Communication Congress in Hamburg at the end of December and is now asking for your ideas for lectures. You can also support the best hacker party of the year with your music and art performances and with punk.

Please read our Call for Participation carefully, before submitting ideas. It includes practical tips and guidance on how to best present your submission and how to avoid …

Book your holiday, dog-ear your calendar, order a suitcase, check the bed exchange and wash your congress shirts: Between 27 and 30 December 2025, it will once again be time to join the Chaos Computer Club in organising, experiencing and celebrating Europe’s biggest and most relaxed hacker party, net culture party and tech conference. For this year’s edition, we will open Hamburgs Congress Center’s doors under the motto “39C3: Power cycles”, you can read the invitation on the CCC website for the proper pep talk:.

Get ready to join hundreds of like-minded …

Every November, the Nights of Open Knowledge take place in Lübeck – and starting now, the Call for Participation for NooK 2025 is open! You can submit workshops, talks, lightning talks, booths, and meetups.

Submissions are open until 28 September.

As always, the theme is everything! At NooK, archaeology meets climate research, cycling infrastructure meets open data, and digital self-defence meets planting trees. NooK is a place to share your knowledge and to make it accessible to all.

This diverse range of topics is only possible because of people who are passionate about their subject and …

Hidden Patterns

Entropia e.V. invites you to the 23rd Gulaschprogrammiernacht with the motto „Hidden Patterns“!

19–22 June 2025
HfG and ZKM, Lorenzstraße 15, 76135 Karlsruhe

⚠ IMPORTANT: Please read the section regarding the registration thoroughly, there are changes/news this year. ⚠

TL;DR:

The GPN is a community event where you can get together to, for example, hack, eat goulash or attend lectures. The event is open and community-financed, but please register anyway. The GPN works because you contribute to it as a participant. Be it by helping with various tasks (“trolling”) or by …

(Fanfare music) Dadada Dadadadadada …
The Chaostreff Backnang presents for the third time

Overview

Start: 9 May 2025, 16:00
End: 11 May 2025, 18:00
Genre: Hacking & Networking Event
Venue: Kino Universum Backnang, Sulzbacher Str. 32, 71522 Backnang (OpenStreetMap)
Admission price: 55 €

Plot

Chaostreff Backnang is going to stage a hacking event on 9–11 May in the Murr metropolis of Backnang, in the heart of Swabia. The guest list includes all tech-savvy hackers who have always wanted to spend an entire weekend at the movies. The further course of the plot depends on the …

The Baltic Sea. Family holidays, nudist beaches, fish sandwiches, sand between your toes and seagulls in the air. For many a relaxing holiday destination, for us the best location for the first big chaos event in Mecklenburg-Vorpommern!

The InselChaos will take place on 5–7 September at La Grange in Bergen on the beautiful island of Rügen and combines art, hacking, music and community. La Grange offers the opportunity to exchange ideas on technology, society and creativity in an extraordinary atmosphere, barely 20 minutes from the beach. Whether on the stage, in the chill-out area or in the …

tl;dr Easterhegg 2025: CfP is here

Easterhegg 2025 will take place from 18 April to 21 April 2025 in Hamburg. Once again, there will be four days of workshops, talks and other events. This time, everything revolves around the motto “Unhandled Eggception” – and we are looking forward to your creative, technical and extraordinary interpretations of it. The Call for Participation is therefore open and will accept your submissions until (and including) 1 March 2025.

Easterhegg is a friendly community event where we can get to know each other and brainstorm new ideas together. It is the perfect …

38C3 is over. Sadly. We hope that your journey home went well and that you had a good return to reality.

Those four days of living a utopia were far too short. There was so much more that one could have experienced, so many more things to discover, so many more people to meet, so many more talks to see … To our own regret, the length of the event can’t really be changed. But many other things can be! That is why we want to ask for your feedback. Let us know what you liked, but also what you didn’t like. We appreciate both praise and constructive suggestions for improvement! But you need to be …