The 39th Chaos Communication Congress (39C3) takes place in Hamburg on 27-30 Dec 2025, and is the 2025 edition of the annual four-day conference on technology, society and utopia organized by the Chaos Computer Club (CCC) and volunteers. Congress offers lectures and workshops and various events on a multitude of topics including (but not limited to) information technology and generally a critical-creative attitude towards technology and the discussion about the effects of technological advances on society.
40 min
Verlorene Domains, offene Türen
Was alte Behördendomains verraten
38 min
CPU Entwicklung in Factorio
Vom D-Flip-Flop bis zum eigenen Betriebssystem
58 min
Skynet Starter Kit
From Embodied AI Jailbreak to Remote Takeover of Humanoid…
58 min
selbstverständlich antifaschistisch!
Aktuelle Informationen zu den Verfahren im Budapest-Komplex…
39 min
Recharge your batteries with us
– an empowering journey through the energy transition
38 min
51 Ways to Spell the Image Giraffe:
The Hidden Politics of Token Languages in Generative AI
38 min
Chaospager
How to construct an Open Pager System for c3
40 min
Auf die Dauer hilft nur Power
Herausforderungen für dezentrale Netzwerke aus Sicht der…
39 min
Amtsgeheimnis raus, Datenhalde rein
Was die Informationsfreiheit in Österreich bringt
58 min
Neue Chaos Events
InselChaos und Håck ma’s Castle plaudern aus dem Nähkästchen
41 min
Chaos Communication Chemistry
DNA security systems based on molecular randomness
55 min
Hatupangwingwi
The story how Kenyans fought back against intrusive digital…
34 min
Machine Vision
Vom Algorithmus zum Baumpilz im digitalen Metabolismus
40 min