TL;DR
The 39th Chaos Communication Congress (39C3) took place in Hamburg from December 27–30, 2025; media.ccc.de has published a playlist of recorded sessions. The archive includes a broad mix of presentations on security, hardware, ethics, AI and community topics, with several talks drawing tens of thousands of views.
What happened
The Chaos Computer Club and volunteers staged the 39th Chaos Communication Congress (39C3) in Hamburg, running from December 27 to 30, 2025. The event followed the established four-day format of lectures, workshops and other gatherings addressing technology and its social impact. Media.ccc.de published a full playlist of video and audio recordings from the congress, cataloging sessions by title, duration, date, category and view count. Top-viewed entries on the page include Marc-Uwe Kling and Linus Neumann’s “Die Känguru-Rebellion: Digital Independence Day” (82.7k views), Cory Doctorow’s talk “A post-American, enshittification-resistant internet” (77.8k views) and “All my Deutschlandtickets gone: Fraud at an industrial scale” (67.4k views). The listings span topics labeled Security, Hardware, Ethics, CCC & Community, Art & Beauty and Science, reflecting the conference’s mix of technical research, policy discussion and cultural programming.
Why it matters
- The published recordings preserve technical briefings and policy discussions for broader public access beyond the live event.
- High view counts on several talks indicate wider interest in debates about internet governance, security and AI.
- The program demonstrates ongoing cross-disciplinary engagement between technical research, civic debate and creative work.
- A centralized archive makes it easier for researchers, practitioners and the public to review contemporary discussions on technology and society.
Key facts
- Event: 39th Chaos Communication Congress (39C3).
- Dates and location: Hamburg, 27–30 December 2025.
- Organizers: Chaos Computer Club (CCC) and volunteers.
- Format: Four-day conference offering lectures, workshops and various events on technology and society.
- Media archive: Full playlist of video and audio recordings is available on media.ccc.de.
- Top three view counts on the media page: “Die Känguru-Rebellion: Digital Independence Day” — 82.7k; Cory Doctorow’s talk — 77.8k; “All my Deutschlandtickets gone: Fraud at an industrial scale” — 67.4k.
- Conference categories listed on the media page include Security, Hardware, Ethics, CCC & Community, Art & Beauty and Science.
- Source page published metadata timestamp: 2026-01-02T13:17:06+00:00.
What to watch next
- “Die Känguru-Rebellion: Digital Independence Day” — listed with 82.7k views (highest on the page).
- “A post-American, enshittification-resistant internet” (Cory Doctorow) — listed with 77.8k views.
- “All my Deutschlandtickets gone: Fraud at an industrial scale” — listed with 67.4k views.
Quick glossary
- Chaos Communication Congress (39C3): An annual multi-day conference organized by the Chaos Computer Club covering technology, society and related topics.
- Chaos Computer Club (CCC): A community organization of technologists and activists that organizes events such as the Chaos Communication Congress.
- Playlist (video/audio): A curated list of recorded sessions available for streaming or download, typically including metadata like title, duration and view count.
- View count: A metric shown on video hosting pages indicating how many times a recording has been played or accessed.
Reader FAQ
When and where did 39C3 take place?
The congress ran in Hamburg from 27 to 30 December 2025.
Who organized the event?
The Chaos Computer Club together with volunteers organized the conference.
Are recordings available?
Yes — the media.ccc.de page lists a full playlist of video and audio recordings.
How many sessions were recorded at the congress?
not confirmed in the source
Are transcripts or subtitles provided for the videos?
not confirmed in the source
39C3: Power Cycles Full playlist: Video / Audio The 39th Chaos Communication Congress (39C3) takes place in Hamburg on 27-30 Dec 2025, and is the 2025 edition of the annual…
Sources
- 39th Chaos Communication Congress Videos
- 39C3: Power Cycles – media.ccc.de
- 39C3: Power Cycles
- The 39th Chaos Communication Congress (39C3) Taking …
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