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PODCAST

Chaos Computer Club - recent events feed

Der Chaos Computer Club ist die größte europäische Hackervereinigung, und seit über 25 Jahren Vermittler im Spannungsfeld technischer und sozialer Entwicklungen.

technology

All Episodes

00:39:42

CCC&T - Cosmic ray, the Climate Catastrophe and...

Chaos Computer Club - recent events feed ·

2025/12/30

How can we predict soil moisture by measuring cosmic ray products and what have trains to do with it? Ever wondered how this Dürremonitor works, that you heared about in ther german news? These question and some more I will try to answer while I give an overview of some of the research that is done by the Helmholtz Centre for Environmental Research (UFZ). The Dürremonitor is a programme that is often mentioned in the German news when some regions experience drought. Alongside the Dürremonitor and

00:39:32

“End Of 10”: How the FOSS Community is Combatting...

Chaos Computer Club - recent events feed ·

2025/12/30

The end of free support for Windows 10 was 14 October 2025. Well, sort of. Microsoft moved the date to 2026, one more year the FOSS community can introduce users to sustainable software. 14 October is also KDE's birthday, International E-Waste Day, with International Repair Day following on 18 October. The irony is deep, but what is not ironic is that millions of functioning computers will end up becoming security risks or discarded as e-waste. This means manufacturing and transporting new ones, the

00:42:01

What You Hack Is What You Mean: 35 Years of Wiring...

Chaos Computer Club - recent events feed ·

2025/12/30

Encoding isn’t just for machines — it’s how humans shape meaning. This talk traces 35 years of hacking text through the Text Encoding Initiative (TEI), a community-driven, open-source standard for describing the deep structure of texts. We’ll explore how TEI turns literature, research, and even hacker lore into machine-readable, remixable data — and how it enables minimal, sustainable self-publishing without gatekeepers. From alphabets to XML and the Hacker Bible, we’ll look at text as a living

00:39:44

Atoms in Space (39c3)

Chaos Computer Club - recent events feed ·

2025/12/30

*What are atoms doing in space anyways?* This talk will provide a brief overview of applications of quantum technologies in space ranging from precise timing and inertial measurements to fundamental physics. Quantum technologies have seen a wide field of applications in medicine, geosciences, computing and communications, in many cases bridging the gap from laboratory experiments to commercial products in the last decade. For terrestrial applications that is. But what about going to space? Quantum

00:37:56

Asahi Linux - Porting Linux to Apple Silicon (39c3)

Chaos Computer Club - recent events feed ·

2025/12/30

In this talk, you will learn how Apple Silicon hardware differs from regular laptops or desktops. We'll cover how we reverse engineered the hardware without staring at disassembly but by using a thin hypervisor that traces all MMIO access and then wrote Linux drivers. We'll also talk about how upstreaming to the Linux kernel works and how we've significantly decreased our downstream patches in the past year. As an example, we will use support for the Type-C ports and go into details why these are

00:36:26

I Hated All The Cross-Stitch Software So I Made My...

Chaos Computer Club - recent events feed ·

2025/12/30

I wanted to design beautiful header diagrams and ASCII tables suitable for stitching on throw pillows, but found existing tools for cross-stitch design to be all wrong. I made my own set of command-line tools for building this chunky, pixelated visual art. If you've never seen a cross-stitch sampler that had bitrot, this talk will fix it. Designing cross-stitch patterns, I got frustrated with all the programs which expected me to click around a canvas setting individual pixels. I wanted a

00:37:01

How to keep Open Source open without leaving our...

Chaos Computer Club - recent events feed ·

2025/12/30

The Four Freedoms (defined ~40 years ago) and the Four Opens (~15 years ago) for Open Source provided canonical definitions for what are the cornerstones of Open Source Software communities today. While the ethos still applies today, the cultural norms that blossomed to put it into practice are from an era with different challenges. To build a better world, we need to both keep and protect the value system of the Four Freedoms and Four Opens. To do that, we need to re-assess our risk and threat

00:45:14

Spectre in the real world: Leaking your private data...

Chaos Computer Club - recent events feed ·

2025/12/29

Transient execution CPU vulnerabilities, like Spectre, have been making headlines since 2018. However, their most common critique is that these types of vulnerabilities are not really practical. Even though it is cool to leak `/etc/shadow` with a CPU bug, it has limited real-world impact. In this talk, we take Spectre out for a walk and let it see the clouds, by leaking memory across virtual machine boundaries at a public cloud provider, bypassing mitigations against these types of attacks. Our

00:38:25

PRÜF (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

PRÜF! Prüfung Rettet übrigens Freiheit! Alles wird in Deutschland geprüft. Warum nicht auch mutmaßlich verfassungswidrige Parteien? Hier stelle ich vor, was PRÜF! anders machen will als bisherige Kampagnen. Wir haben eine Forderung: „Alle Parteien, die vom Verfassungsschutz als rechtsextremer Verdachtsfall oder gesichert rechtsextrem eingestuft werden, sollen durch das Bundesverfassungsgericht überprüft werden.“ Wir demonstrieren so lange, bis der Bundesrat die Prüfung formal beantragt hat

00:38:16

Verschlüsselung brechen durch physischen Zugriff -...

Chaos Computer Club - recent events feed ·

2025/12/29

Eine zwar profane Methode der Überwachung, die Polizeibehörden in Deutschland jedoch hunderttausendfach anwenden, ist das Auslesen von Daten beschlagnahmter Smartphones und Computer. Dazu nutzt die Polizei Sicherheitslücken der Geräte mithilfe forensischer Software von Herstellern wie Cellebrite oder Magnet aus. Die Verfassungsmäßigkeit der Rechtsgrundlagen ist zweifelhaft. Im Vortrag werden anhand aktueller Fälle technische und juristische Hintergründe erörtert. Staatstrojaner, Chat-Kontrolle,

00:40:26

Rowhammer in the Wild: Large-Scale Insights from...

Chaos Computer Club - recent events feed ·

2025/12/29

Last year at 38c3, we gave a talk titled "Ten Years of Rowhammer: A Retrospect (and Path to the Future)." In this talk, we summarized 10 years of Rowhammer research and highlighted gaps in our understanding. For instance, although nearly all DRAM generations from DDR3 to DDR5 are vulnerable to the Rowhammer effect, we still do not know its real-world prevalence. For that reason, we invited everyone at 38c3 last year to participate in our large-scale Rowhammer prevalence study. In this year's talk,

01:00:48

Human microservices at the Dutch Railways: modern...

Chaos Computer Club - recent events feed ·

2025/12/29

The Dutch railways have been operating an increasingly complicated network of trains for over 80 years. The task of overseeing it is far too complex for a single human. As such, a network of specifically scoped humans has been connected. Over time, computers and software have been introduced into the system, but today there is still a significant role for humans. This talk describes the network of "human microservices" that is involved in the Dutch Railways' day to day operation from the eyes of a

00:57:47

Peep-Show für die Polizei. Staatliche Überwachung von...

Chaos Computer Club - recent events feed ·

2025/12/29

Oder: Wie die Hamburger Polizei queere Menschen auf öffentlichen Toiletten observierte, und wie ein anonymes Kollektiv im Juli 1980 dieses Überwachungsystem wortwörtlich mit dem Hammer zerschlagen hat. Ein analoger Überwachungskrimi mit sauberen Städten, lichtscheuen Elementen, queerem Aktivismus, und kollektiver Selbstorganisation; und mit einer Anleitung wie man Beamten Anfang der 80er das Handwerk legen konnte. In den 1970er Jahren nutzt die Hamburger Polizei auf zehn öffentlichen

00:52:47

Von Fuzzern zu Agenten: Entwicklung eines Cyber...

Chaos Computer Club - recent events feed ·

2025/12/29

Die AI Cyber Challenge (AIxCC) der DARPA hatte zum Ziel, die Grenzen der autonomen Cybersicherheit zu erweitern: Können AI-Systeme Software-Schwachstellen unabhängig, in Echtzeit und ohne menschliche Hilfe identifizieren, verifizieren und beheben? Im Laufe von zwei Jahren entwickelten Teams aus aller Welt „Cyber Reasoning Systems“ (CRS), die in der Lage sind, komplexe Open-Source-Software zu analysieren, Code zu analysieren, reproducer zu generieren, um zu zeigen, dass ein gemeldeter Fehler kein

00:37:32

The Spectrum - Hackspace Beyond Hacking (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

The Spectrum is a newly founded queer-feminist, intersectional hackspace centering FLINTA+, disabled, and marginalized beings. We see hacking as playful exploration—of technology, art, and ideas—to reimagine what inclusion and collaboration can be. At 39C3, we share how awareness, accessibility, and transdisciplinary creation can transform community and hack the norm. The Spectrum is a new queer-feminist, intersectional and transdisciplinary hackspace centering FLINTA+, creatures with disabilities,

00:40:36

Light in the Dark(net) (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

Science is hard and research into the usage of the Tor network is especially so. Since it was designed to counter suveillance, it gathering reliable information is difficult. As a consequence, the studies we do have, have yielded very different results. This talk investigates the root causes of contradicting studies by highlighting how slight changes in methodology or data selection completely change the results and thereby our understanding of what the Darknet is. Whether you consider it the last

00:44:51

The Heartbreak Machine: Nazis in the Echo Chamber (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

WhiteDate ist eine Plattform weißer Suprematist:innen, die sich an Rassist:innen und Antisemit:innen richtet – und auf veralteter Infrastruktur basiert. Was die 8000 Mitglieder nicht wussten: Einige der Nazis flirteten dieses Jahr mit realistisch wirkenden Chatbots - und verliebten sich sogar in sie. Mit einer Kombination aus automatisierter Konversationsanalyse, Web-Scraping und klassischen OSINT-Methoden verfolgten wir öffentliche Spuren und identifizierten die Personen hinter der Seite. Dieser

00:58:56

10 years of Dieselgate (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

Let's have a (hopefully) final look at Diesel emission cheating. This technical talk summarizes what I learned by reverse-engineering dozens of engine ECU software, how I found and characterized "interesting logic" which, more often than not, ended up being a court-approved "defeat device". What started as a "curious investigation" in 2015 to obtain a ground truth to widespread media reports of "VW being caught for cheating" ended up as a full-blown journey through the then-current state of the

00:35:03

Hegemony Eroding: Excavating Diversity in Latent...

Chaos Computer Club - recent events feed ·

2025/12/29

Hegemony Eroding is an ongoing art project exploring how generative AI reflects and distorts cultural representation. Its name speaks to its core ambition: to bear witness to the slow erosion of Western cultural hegemony by exposing the cracks in which other cultures shine through. This talk will discuss the blurry boundary between legitimate cultural representation and prejudice in AI-generated media and how generative AI can be used as a tool to explore humanity's digital foot print. It is

00:38:51

Race conditions, transactions and free parking (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

ORM's and/or developers don't understand databases, transactions, or concurrency. After the [Air France-KLM dataleak](https://media.ccc.de/v/37c3-lightningtalks-58027-air-france-klm-6-char-short-code) I kept repeating this was not a real hack, and confessed I always wanted to hack a system based on triggering race conditions because the lack of proper transactions. This was way easier than expected. In this talk I will show how just adding `$ seq 0 9 | xargs -I@ -P10 ..` can break some systems, and

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