40th Chaos Communication Congress

27–30 December 2026, Hamburg Messe

get informed

Info Pages

The info pages are the main source for all information around Congress. Official infos and announcements can be found here.

Event Blog

Announcements about Congress and our other events.

Venue Map

c3nav, the constantly updated digital map of the Congress venue.

visit talks & events

the Fahrplan

Schedule of all curated events on stages during Congress.

full Schedule

Aggregated schedule of all events and parties: curated and community-made during Congress

Self-Organized Sessions

Find events and gatherings created by our community. Contribute your own.

Lightning Talks

Your five minutes of fame!

media.ccc.de

Watch talks in our media archive.

get involved

Heaven

Register as a volunteer and help us make Congress happen.

Chat

Get in touch with the organising teams and other attendees.

Hub

Assemblies, Events, Projects, Wiki and Bulletin Board.

Eventphone

Make calls using your DECT phone, SIP client or even a SIM card.

be excellent

Accessibility

Detailed info on accessibility at 40C3 and points of contact.

Principles

How to be excellent and welcoming to all creatures of the universe.

get help

When you are in need of medical aid, social support or have experienced discrimination.