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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

00:45:14

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

00:52:47

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

00:57:47

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

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

00:40:26

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,

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

00:37:32

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,

00:44:51

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

00:57:19

Blackbox Palantir (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

Wer nutzt in Deutschland Software von Palantir und wer hat das in naher Zukunft vor? Was sind die rechtlichen Voraussetzungen für den Einsatz solcher Analysewerkzeuge? Und was plant Innenminister Alexander Dobrindt in Sachen Palantir für die Polizeien des Bundes? Software von Palantir analysiert für Polizeien und Militär deren Daten – dafür lizenzieren auch deutsche Polizeibehörden seit Jahren die Analysesoftware Gotham des US-Unternehmens. Die Software verarbeitet strukturierte und unstrukturierte

00:57:49

Aber hier Leben? Nein danke! …oder doch? Wie wir der...

Chaos Computer Club - recent events feed ·

2025/12/29

Im Osten stehen nächstes Jahr schon wieder Wahlen an und schon wieder sieht alles danach aus, als ob die AfD eine Regierungsbeteiligung bekommen könnte. Ganz konkret: In Sachsen-Anhalt und Mecklenburg-Vorpommern. Nicht nur diese "rosigen" Aussichten, sondern auch aktuelle Bevölkerungsprognosen werfen gar kein günstiges Licht auf die Regionen. Linke Akteur:innen vor Ort kämpfen täglich dagegen an und sie brauchen unsere Solidarität. Wir müssen dem etwas entgegensetzen. Egal ob als Hacker:innen auf

00:36:33

The Angry Path to Zen: AMD Zen Microcode Tools and...

Chaos Computer Club - recent events feed ·

2025/12/29

[EntrySign](https://bughunters.google.com/blog/5424842357473280/zen-and-the-art-of-microcode-hacking) opened the door to custom microcode on AMD Zen CPUs earlier this year. Using a weakness in the signature verification we can load custom microcode updates and modify behavior of stock AMD Zen 1-5 CPUs. While AMD has released patches to address this weakness on some CPUs, we can still use unpatched systems for our analysis.In this talk we cover what we found out about microcode, what we saw in the

00:40:31

AI Agent, AI Spy (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

Agentic AI is the catch-all term for AI-enabled systems that propose to complete more or less complex tasks on their own, without stopping to ask permission or consent. What could go wrong? These systems are being integrated directly into operating systems and applications, like web browsers. This move represents a fundamental paradigm shift, transforming them from relatively neutral resource managers into an active, goal-oriented infrastructure ultimately controlled by the companies that develop

00:41:01

Build a Fake Phone, Find Real Bugs (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

Mobile phones are central to everyday life: we communicate, entertain ourselves, and keep vast swaths of our digital lives on them. That ubiquity makes high-risk groups such as journalists, activists, and dissidents prime targets for sophisticated spyware that exploits device vulnerabilities. On Android devices, GPU drivers have repeatedly served as the final escalation vector into the kernel. To study and mitigate that risk, we undertook a research project to virtualize the Qualcomm Android kernel

00:40:09

Netzpolitik in der Schweiz: Zwischen Bodensee und...

Chaos Computer Club - recent events feed ·

2025/12/29

Auch in der Schweizer Netzpolitik ging es im auslaufenden Jahr drunter und drüber. Wir blicken mit gewohntem Schalk auf das netzpolitische Jahr 2025 zwischen Bodensee und Matterhorn zurück - und diskutieren jene Themen, die relevant waren und relevant bleiben. **Themen sind unter anderem:** **E-ID und E-Collecting:** Die netzpolitische Community hat nicht nur eine privatisierte E-ID verhindert sondern auch den Datenschutz als zentrales Prinzip verankert und einen beispielhaften

00:56:59

Wer liegt hier wem auf der Tasche? (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

Das Bürgergeld ist Geschichte. An seine Stelle tritt eine Grundsicherung, die auf kalkulierten Verfassungsbruch setzt. Totalsanktionen, Vermittlungsvorrang, Quadratmeterdeckel, jeder Move bedeutet umfassendere staatliche Überwachung. Die Bezahlkarte soll in Hamburg perspektivisch zunächst auf Sozialhilfe‑ und Jugendhilfebeziehende ausgeweitet werden. Sind Bürgergeldbeziehende als nächstes dran? Die neue Grundsicherung trumpft Hartz IV in seiner Grausamkeit und ist ein Damoklesschwert über

01:01:21

The Last of Us - Fighting the EU Surveillance Law...

Chaos Computer Club - recent events feed ·

2025/12/29

The virus of surveillance is spreading across the European Union. In the form of its "ProtectEU" Internal Security Strategy, the European Commission is planning to attack encryption, re-introduce mandatory data retention and strengthen Europol and Frontex, the main agents of its oppressive law enforcement infrastructure. In this talk, we will journey the wastelands of the EU surveillance apocalypse together: We will take a close look at what politicians are planning to undermine our fundamental

00:51:43

Set-top box Hacking: freeing the 'Freebox' (39c3)

Chaos Computer Club - recent events feed ·

2025/12/29

The French ISP 'Free' was the first to introduce a set-top box in France in 2002, named the Freebox. Four years later, the fifth version of the Freebox was released and distributed to customers. It comprises two devices: a router, and a PVR called the Freebox HD, both running Linux. The Freebox HD had innovative features at the time, such as live television control and HD capabilities. Such a device has a lot of potential for running homebrew, so I decided to hack it. I present how I got arbitrary

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