The word is on the street: the Chaos Computer Club is hosting 40C3 from 27 to 30 December 2026 – Europe’s biggest hacker party, conference and platform for technology, society and civil liberties. We understand the Congress to be a huge shared stage and therefore invite you to help shape it. The Call for Participation for talks, the entertainment programme, art, punk and music opens today.

Everything is getting bigger, more colourful and more beautiful. Following our moving to the Hamburg Exhibition halls, there is once again plenty of space for creative ideas. Obviously, we want to make the …

tl;dr: The Congress is staying in Hamburg, but is moving from the CCH to the exhibition centre. With the extra space, we aim to reduce overcrowding and support a return to decentralisation. The best way for us to achieve this is if you form tribes and alliances and help us design the new spaces for 40C3.

An Introspection

Having already rocked eight Congresses together at the CCH, we have to face up to a few realities: the Congress has clearly outgrown the building. We can see this in the people who’d love to take part but can’t get a ticket, or – if they’ve managed to get hold of one – can’t …