All talks will be live streamed, and right after the talk is done you have a rough cut available instantly under "re-live" you can watch until the final recording is available; https://streaming.media.ccc.de/39c3/relive
The final recording will appear under a day or two after the talk is held: https://media.ccc.de/c/39c3
EDIT: A different variant of the schedule with better filtering is available here: https://events.ccc.de/congress/2025/hub/en/schedule
I should note that some talks will not be recorded, and only available at the congress. These are clearly marked on the congress hub website, but not easily available on the fahrplan view.
I've mostly made it for myself to skip the recorded sessions when on-site and to see what's coming up at the current time of day. It therefore tries to include all the self organized sessions, workshops, meetups, music programs, etc. I've been running it for a few years and people use it for all kinds of use cases, including sitting at home and watching the streams.
https://events.ccc.de/congress/2025/hub/de/schedule?mode=lis...
Are there any talks whose speakers are known for their expertise that one should pay attention to?
> Just like at this very event (39C3), the last few years a small group of volunteers has delpoyed and operated legacy telephony networks for ISDN (digital) and POTS (analog) services at CCC-camp2023 and 38C3. Anyone on-site can obtain subscriber lines (POTS, ISDN BRI or PRI service) and use them for a variety of services, including telephony, fax machines, modem dial-up into BBSs as well as dial-up internet access and video telephony.
https://satcom.sysnet.ucsd.edu/docs/dontlookup_ccs25_fullpap...
All of these looked good to me this year: https://halfnarp.events.ccc.de/#e72b9560a7c729d1b38c93ef18a5...
This year we were toying with the idea of going for a revival. But man, did we underestimate how much this event has grown...
Tickets in the second presale round were gone within 1-2 seconds. We didn't stand a chance. I feel like we failed the entry exam tbh.
Anyways, to everybody who did score a ticket: have phun, and happy hacking!
The other guaranteed way for tickets is to volunteer enough as an angel at the Congress the year before to get an angel voucher. But you obviously need a ticket for a Congress in the first place do to that.
So let me know if someone is interested in this ticket, see my GitHub for mail address. I know other speakers where even unaware of this (so I might know another ticket for sale).
I've stopped attending it about 10 years ago. I rather prefer to watch some few interesting topics online, and skip all the wanna-be political junk.
But listening to pep talks of political opinions that are very opposite to yours does not seem productive, either.
It skews a bit more German, but it's essentially a smaller "summer congress" that used to have free attendance until this year (tickets now cost 10€ to cover the breakfast, IIRC). A lot less people there, but the general vibe is very similar.
Here it is:
> http://blog.fefe.de/?ts=97cd29cd
> http://blog.fefe.de/?mon=202512
(note that https currently does not work).
Without direct action it's just nerds reading out their blog posts about politics, which couldn't be less interesting.
Congress seems to keep growing so perhaps this is just serving a broader audience. But knowing a lot of long-time attendees, I'm certainly not alone in thinking Congress is starting to be less interesting than it used to be. I'm certainly not trying to say the event sucks though, there's still a plenty of interesting stuff happening.
Let's be real, the videos get far to much eyes to break the law. There are smaller talks and groups where it looks different.
Nowadays you cannot do that anymore, because most visitors are non-technical. Nobody respects the photo policy. Everyone judges your actions through their political lens. Instead all the "action" happens elsewhere and CCC became much more about social stuff, talking and politics. And of course about policing and judging other peoples' politics.
And making stuff up that was never talked about there to start a political movement to get that party banned? Yeah nice democracy and journalism there.
https://rsw.beck.de/aktuell/daily/meldung/detail/lg-hamburg-...
But what does this have to do with your suggestion that I should ask the court whether you were at the meeting?
>whether you were at the meeting?
Where you? You are clearly missing the point.
There were many stories where people lost faith in politics (e.g. after Chernobyl), so people gathered together to do stuff on their own. I think being "social" (to all people), decentralized and mistrusting authorities is just a left thing. so that's just a natural thing imho
But chernybyl isnt the only or primary reason.
Every year you got new people who find out the hard way that the CCC is a place for ardent activism, not for critical thinking.
The people who stay do it to meet their friends there.
LOL, never change CCC, never change...
I'm currently on a plane towards Hamburg and will be speaking on Day 2.
"Agentic ProbLLMs - Exploiting AI Computer-Use and Coding Agents"
https://events.ccc.de/congress/2025/hub/event/detail/agentic...
Hope he gets well soon.
Too much naive activism and I'm not sure what importing more of the 3rd world has to do with C3 honestly
opening is tomorrow 10h30 CET
more so especially since the very act of "hacking" is a political statement because it involves redistributing power over information.
Code is law, remember?
That would be like complaining about "too much law" at a constitutional convention.
If you look at the history of the CCC, they also don't see a line between technical freedom and social freedom, because you can't have a free internet in an unfree society.
The 'outside' topics you mention are often just the hackers' way of applying their methodology to the world beyond the screen. Society is a larger system with its own bugs and exploits that inevitably affect the computers you use and the code that run them, and hackers like to apply their methodology to analyze that to understand the consequences.
Moreover, if you actually want meritocracy, you have to address the social barriers that keep people out of the room, and you can't do that without addressing the outside world.
https://fahrplan.events.ccc.de/congress/2025/fahrplan/event/...
https://fahrplan.events.ccc.de/congress/2025/fahrplan/event/...
https://fahrplan.events.ccc.de/congress/2025/fahrplan/event/...
It's a big organisation, and politics is wrapped up in what they do, along with the post-WWII Antifaschism culture in Germany.
Even if it weren't the case, I don't get why attack them for helping stand up for democracy, something in dire need of advocacy these days
(Parent comment was edited to remove the part about diluting meaning)
Like with lockpicking, many pickers work with the cylinder in a vise, and the lock is just a mechanical puzzle. That the lock can be attached to something one would want to secure is just a distant thought.
And it is not that inaccessible to non-US citizens. Sure, the current administration is not very welcoming, but it is easier than, say, Russia (where a lot of hackers also live) if you want to attract an international audience.
Anyways, it is the CCC, and they are doing it in Germany, of course, because they are German.
I would say that with the current US administration, it is similar hard to get to the USA as to Russia.
The difference rather is that in Europe's hacker scene there exist quite some people who, if they stated their opinions openly, would get in much worse trouble if they stated their opinion in Russia than in the USA (because in the USA these opinions are currently "more acceptable"). On the other hand, for Russian hackers likely the reverse holds: I can easily imagine that quite a lot of Russian hackers, if they stated their opinions in the USA, would attract quite a lot of trouble.
Just to be clear: I consider it to be quite plausible that in 5 years, the situation might be similarly bad in the USA as it is today in Russia.
CCC is German, and started in West-Germany. It is the oldest hacker conference. The second was USA (DEF CON), and the third was The Netherlands (theirs is approx every four years, and has a different name every year). The first one in NL was HeU 1993 (Hacking at the End of the Universe). This list excludes demoscene (IMO part of hacker culture due to reversing / cracking software, plus programmming and art in limited constraints, but at the very least it is related to); the first demoscene party was called Copy Party in Finland, 1980. Nordic countries are well represented in demoscene.
I am only aware of one person who fled USA to RU, and said person wasn't known in hacker culture before he did, plus he ended up there by mistake. By contrast, various people in infosec left USA for Europe. Jacob Applebaum went to Germany, Drew DeVault went to The Netherlands.
Since 2022, brain drain started in Russia due to the full scale invasion and war with Ukraine.
There's a very free country near the USA which does not have the ridiculous entry requirements the USA has. It even has a couple of large cities near the US border, including near cities with a rich hacker culture. Entry to said country is about as easy as entry to Germany. The country is called Canada. Yes, your neighbor.
May HOPE, DEF CON, and Black Hat end up in a tolerant, hacker-friendly country. I am not aware of brain drain due to Trump II. I mean, it is happening, but it also happened during Bush era, and the proportions I don't know about.
As for CCC being held in Germany. They have been very open to foreigners (as have us Dutch been), famous USA hackers were always welcome (and came) to hacker conferences in NL and DE. Talks in NL were almost all in English, at CCC partly (German is a relatively popular language in Europe). Nowadays, almost all German talks get dubbed and subbed. So CCC is very American-friendly, cause we Europeans get that Americans speak almost exclusively English only.
For a hacker conference, they also are pretty Luddite against new technologies like AI. It's a very conservative degrowth movement nowadays, all in all.
Hacking was always against centralization and central control (and towards decentralization) - which is why any lecture celebrating the bigtech AI companies would strongly be against the whole culture.
While for various reasons AI is a controversial topic, I would say that if someone gave a great talk about how to decentrally train some AI model efficiently as some volunteer computing project, this would be perfectly fitting for the C3.
Addendum: There is an AI talk (as pointed out by wunderwuzzi23 at https://news.ycombinator.com/item?id=46390959): https://events.ccc.de/congress/2025/hub/event/detail/agentic...
No, just this one, because it steals from almost everyone and gives to the few. Even if it seems to be somewhat failing at monetization for now, control is in the hands of a very few.
Some people just like to complain that they have to take a shower and can't harass women like they used to like they could when congress was at the BCC and that kind of nonsense didn't immediately get you thrown out like today.
> Some people just like to complain that they have to take a shower and can't harass women like they used to like they could when congress was at the BCC and that kind of nonsense didn't immediately get you thrown out like today.
You could never do that. A few years ago, some activists tried to make a fuzz with stuff like creeper cards, intervention teams and codes of conduct. But those were never needed in the first place, almost nothing ever happened at CCC that would have warranted those things. But "those white male hackers are certainly sexist raping pigs" is a firmly entrenched stereotype in certain circles.
The one thing you cannot ever do is go to CCC and express any idea that isn't very far left. That is a very certain way to get thrown out. Your talk won't ever be on the Fahrplan if the topic isn't "hooray, more refugees", "hooray, more EU dictatorship" or "hooray, down with everything right of Rosa Luxemburg".
You see it in action here, where the politics of the CCC, despite not having changed since their founding are suddenly decried as "very far left". You see the far-right decrying our democratically elected government as "dictatorship", a classic Putinist propaganda move.
Don't let the right wing extremists set the narrative! Don't listen to their complaints about things being too "political" or "far left". It's all just a tactic in their march towards fascism.
How many countries are led by the far right? What about the far left?
Since you asked the question, I assume you have an answer, and I'm curious to hear it. I imagine it will reveal more about your personal politics than any observable political reality.
All the best & I hope you had a Merry Christmas as well.
The best thing the right has done to advance its cause is to convince so many people that the words "right" and "left" don't have actual meanings.
The left would be public ownership of the means of production.
> As a lifelong Democrat and San Franciscan, I am running for mayor to turn around the city I love
London Breed, the mayor before, was endorsed by explicitly Democrat or nonpartisan individuals (including Kamala Harris)
We could go on. What's ironic here is that this comment just reveals how disconnected this form of left wing politics is from the larger nation. They call even examples of the politics of their own "right wing" because they're so radically left
Democrats are a center-right party, they do not argue for any left wing position - like nationalizing industry, abolishing markets etc etc. In Europe, their equivalents in terms of economic policy would be conservative parties like the CDU.
The fact you consider them left wing is only evidence of above overton window shift happening.
No, things have changed in CCC as well. Back in the day, free speech (in the US definition) and a firm opposition to any censorship were consensus on CCC. Nowadays, censorship is totally OK if it targets the right. And any kind of remotely right-wing opinion is declared "not free speech, not an opinion, thus not protected". This is also evidenced by quite a few talks on the topic, and cooperation with far-left activist groups like "Zentrum fuer politische Schönheit" sabotaging right-wing speech on several occasions.
There's a certain hypocrisy in all right wing demands for free speech. They always mean freedom of their speech, not of people they disagree with.
I do believe that providers of such services such as cloud, internet, ... have to stay neutral on such purposes under nearly all circumstances. If the team behind KiwiFarms did something illegal, this is a problem for the judicial system.
But also in KF's case I think it was not so much their content that got them "in trouble", but the people behind that crusade being so loud about it, like Liz Fong-Jones and Keffals, who relentlessly harassed every possible service provider even remotely related to any aspect of KF-related services at all, which included domain registrars, DDoS protection services, hosting/colo/DNS providers, IP space owners, upstream ISPs (and even Tier 1s), etc.
It was basically a master class in mentally-questionable retribution crusades for bringing their very ugly skeletons out of the closet and exposing all of their wrongdoings. LFJ was mad that their rape allegation was made public by KF, and Keffals was mad that their illegal bathtub-HRT scheme was made public.
That's why people say that taking away the rights of one group is like taking it away for everyone.
- Wilhoit's Law
Imho: You don't have to like that person yelling that stuff. You don't have to like what they are yelling. But you have to accept that it has to be their legal right to yell that stuff. Because otherwise, any opinion will one day be a criminal thing to say, just takes one election...
There is a talk on Chat Control though?..
I don't know which past Chaos Communication Congresses you have attended, but it always was. If that's not for you, then that's too bad.
> The one thing you cannot ever do is go to CCC and express any idea that isn't very far left. That is a very certain way to get thrown out.
Opinions that people get thrown out for are not "I love my country" or "hey, maybe immigration should be handled differently". They're things like "Hitler was ok, actually". And IMO if a conference doesn't throw you out for _that_, it's not one worth attending.
Which is fucking based. Being a radical leftist should be normalized even more and people like you need to be driven out of _every_ fucking public space.
[0] https://fahrplan.events.ccc.de/congress/2025/fahrplan/event/... [1] https://fahrplan.events.ccc.de/congress/2025/fahrplan/event/... [2] https://fahrplan.events.ccc.de/congress/2025/fahrplan/event/...
It has been submitted six times in the last 10 months, with a grand total of 1 comment...I though this site had Hacker in the title...
https://hn.algolia.com/?q=https%3A%2F%2Fgfw.report%2Fpublica...
I do believe that originally Y Combinator indeed did celebrate the people who play with technology, but I guess over the many years the focus has shifted.
You can also look at the posts from the first day :) https://news.ycombinator.com/front?day=2006-10-09
CCC was to me the first time I had ever been to a place where most people were like minded. I have been searching for a place where I can meet likeminded people for many years, that wasn't online chatrooms. Once I got there, there was an almost immediate "wow this is my crowd".
It does help to have friends that are somewhat networked and can show you the way and introduce you to people though, as many just sit and hang out with their usual crowd. For me, I ended up talking to a lot of the guys from the same country. I also hung out with internet friends and met their friends. It was great.
One thing that still seems absent is awareness of the complete takeover of "gadgets" in schools. Schools these days, as early as primary school, shove screens in front of children. They're expected to look at them, and "use" them for various activities, including practicing handwriting. I wish I was joking [1].
I see two problems with this.
First is that these devices are engineered to be addictive by way of constant notifications/distractions, and learning is something that requires long sustained focus. There's a lot of data showing that under certain common circumstances, you do worse learning from a screen than from paper.
Second is implicitly it trains children to expect that anything has to be done through a screen connected to a closed point-and-click platform. (Uninformed) people will say "people who work with computers make money, so I want my child to have an ipad". But interacting with a closed platform like an ipad is removing the possibilities and putting the interaction "on rails". You don't learn to think, explore and learn from mistakes, instead you learn to use the app that's put in front of you. This in turn reinforces the "computer says no" [2] approach to understanding the world.
I think this is a matter of civil rights and freedom, but sadly I don't often see "civil rights" organizations talk about this. I think I heard Stallman say something along these lines once, but other than that I don't see campaigns anywhere.
The CCC is a German organization. In Germany, the general public already is quite skepctical of tablets in classrooms, so there is not such a necessity to inform the general public of something many people already think.
While there exist initiatives to use tablets in school in Germany (see for example [1]), these (in my opinion misguided) initiatives rather typically fail for financial reasons and because most teachers simply are incapable of using the technology. And, of course, tablets fail all the time.
So, in other countries this may be an important problem, but in Germany, any initiative for tablets in school already fails by the mere incompetence and the mills of bureacracy, so this is rather a potential topic for hacker conventions in other countries.
[1] https://www.heise.de/news/Schuelertablets-in-Niedersachsen-M...
ryukoposting•1mo ago
Lanedo•1mo ago
ryukoposting•1mo ago
Edit: the youtube playlist for 38c3 seems pretty comprehensive. Thanks to whoever is doing that, it must be a pain.
svelle•1mo ago
smartbit•1mo ago
lhoff•1mo ago
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derrida•1mo ago
It ends at 1am their time. The conference itself never stops there are people there around the clock. (I wish I could go!! I went to 28c3 in Berlin and 29c3 in Hamburg they were amazing)
rurban•1mo ago