39C3 needs your help! No Congress would be possible without the many volunteers, called Angels (German: Engel).

Whether you’re participating for the first time or have already experienced many cycles, helping as an Angel is always a great way to meet new beings, get a look behind the scenes, and create unforgettable experiences for yourself and others.

If you’d like to help, register in the Engelsystem. After your arrival at Congress, come to the Angel registration on the right side of the entrance hall. There you’ll receive your Angel badge and can then freely sign up for shifts for upcoming …

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This year at 39C3, there will be photos of the Congress with hand-drawn figures. All persons will be digitally overdrawn and thus anonymized. This is an exception to the photo policy. “Creature ChroniCles” is an artistic pictorial documentation of Congress events. Graphic designer Stella (known for her Congress designs for 33C3 and 35C3 and for Camp23) will take photos of interesting scenes and nice interactions/installations throughout the entire duration of 39C3 and then anonymize all persons represented in the photos by painting …

Once again, the Haecksen will be enhancing the Congress programme with a workshop room! The Haecksen are a group of FLINTA people with an interest in technology, aiming to promote intersectional feminist perspectives within the hacker scene and STEM professions. The Call for Participation for the Haecksen workshop programme is already live. Now is the time to submit your concepts for workshops, discussion groups or evening events.

Especially FLINTA persons and marginalised beings are invited to submit their workshop ideas. For your inspiration, here are the four tracks:

• Diversity & …

Once again this year, the Chaos Mentors are joining the Chaos Communication Congress in Hamburg!

Interested mentors and mentees can register on our Chaos Mentors platform until 25 November 2025, 23:59 UTC+1.

We’re excited to meet lots of new people who want to experience the colorful, fascinating chaos for the first time, maybe that includes you!

If you’re looking for a bit of support or a small group to connect with during your first Congress, you’ve come to the right place.

Who are the Chaos Mentors for?

Are you curious about Congress but not sure if you’ll feel at home there? Maybe you have …

tl;dr: halfnarp.events.ccc.de

In eager anticipation of 39C3, the dozens of curators in our six content teams have been working hard over the past few weeks: they have sent out invitations, evaluated submissions, written letters, researched, compared, created and discarded common themes, refined and tied up their loose ends, sorted, evaluated, and discussed submissions. Finally, they were able to distill the 763 submitted and invited talk proposals down to 164 and put together a plan that we are all convinced will provide us with an informative, entertaining, and memorable program on stage.

But …

tl;dr: please register your assembly over at the Hub no later than Sunday, 23 November, 23:42 (CET).

There will once again be tables, chairs and spaces in several areas and on several floors of the CCH during 39C3 waiting to be filled with your ideas, topics, and projects. Bring along whatever excites and inspires you in your communities, hackspaces, Erfas and Chaos spaces. Collaborate on projects and ideas, get in touch with interested parties, teach and learn, show, explore, and discover new things – and rediscover old ones.

In keeping with this year’s motto, Power Cycles, there will be some …

Earlier than ever before, the design team is giving us the opportunity to adorn flags, circuit boards, sunglasses, and websites with the hot Congress partner look. To this end, the two designers of 39C3, Nina Bender and Bernd Volmer, have lovingly crafted a design guide with a matching font that should spur our creativity and enable many playful and nerdy interpretations.

We have been provided with a professionally designed variable font to play with. Using only a few cleverly placed lines of CSS as in the examples here, blinking …

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 …

Am 29.12.2025 lädt der CCC zum dritten Azubi-Tag auf dem jährlichen Chaos Communication Congress. In den letzten Jahren war er schon ein voller Erfolg und wir sind gespannt auf die nächste Iteration!

Eingeladen sind Auszubildende aller Berufe, die den Congress und den CCC kennen lernen möchten. Sie bekommen ein vergünstigtes Tagesticket.

Es wird eine Einführungsveranstaltung und ein Programm für Auszubildende geben.

Das Programm des Congresses beschränkt sich nicht auf IT-Themen, sondern beinhaltet auch Beiträge zu Kunst, Kultur und Gesellschaft, sodass der Congress auch für Azubis außerhalb …

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 …