Chaos Computer Club - archive feed

What does it take to get a Genome into the computer? A slightly technical, political and personal dive into the field of genomics. This will be in the first part an introductory talk to Genomics, covering "How do you get a genome into your computer?". As I'm a bioinformaticist, i will briefly mention sequencing, but focus on the computation. Because it turns out that getting a human genome into your computer involves a lot of computation! In the second part i will outline where privacy comes in here, and why it is essential, if we want to do work with genomic data responsibly. Understanding privacy goes beyond the technical: economic incentives, legal policy and security need to be taken into consideration to protect genomic data adequately. In the third part i will tell of a University program which i organized in which we did our own Genomic Analysis with students, as privacy preserving and digitally sovereign as possible, and tell of the challenges we faced and the learnings we made. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/computing-genomes-what-that-has-to-do-with-privacy/

How to run an MVNO with values: What are the requirements? Do you need a government license, maybe a lot of investment? There are different types of MVNOs. We will talk about how to do business as an MVNO while respecting users' privacy, supporting free software, believing in the right to repair and making your customers technologically sovereign. The issues with data privacy are being discussed more than ever. However, from the end user perspective, it is difficult to understand the full extent of the impact on their privacy when using well known "free" services or maybe acquired hardware like a vacuum cleaner or a cooking robot. On the other side, there are projects that demonstrate that they can do business respecting their users. One way to start to take care of your privacy is by using free software, but this software needs to be high quality, easy to use for the end user, has to be documented in a clear way and has to resolve issues and bugs as fast as possible. This is very hard work for the developers, so their work has to be compensated. Last but not least, the right to repair plays a big role for being technologically sovereign. It's as important to be aware of your privacy when using online services as it is to know how repairable and privacy-respecting hardware is before you buy it. Can you fight for and support what you believe in while doing business? I think so! Let's talk about it. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/moving-with-feelings-behind-the-scenes-of-a-one-man-show-mobile-fiber-operator-in-spain/

The density of memory cells in modern DRAM is so high that disturbance errors, like the Rowhammer effect, have become quite frequent. An attacker can exploit Rowhammer to flip bits in inaccessible memory locations by reading the contents of nearby accessible memory rows. Since its discovery in 2014, we have seen a cat-and-mouse security game with a continuous stream of new attacks and new defenses. Now, in 2024, exactly 10 years after Rowhammer was discovered, it is time to look back and reflect on the progress we have made and give an outlook on the future. Additionally, we will present an open-source framework to check if your system is vulnerable to Rowhammer. In 2014, Kim et al. reported a new disturbance effect in modern DRAM that they called Rowhammer. The Rowhammer effect flips bits in inaccessible memory locations just by reading the content of nearby memory locations that are attacker-accessible. They trigger the Rowhammer effect by accessing memory locations at a high frequency, using memory accesses and flushes. The root problem behind Rowhammer is the continuous increase in cell density in modern DRAM. In early 2015, Seaborn and Dullien were the first to demonstrate the security impact of this new disturbance effect. In two different exploit variants, they demonstrated privilege escalation from the Google Chrome NaCl sandbox to native code execution and from unprivileged native code execution to kernel privileges. Later, in 2015, Gruss et al. demonstrated that this effect can even be triggered from JavaScript, which they presented in their talk "Rowhammer.js: Root privileges for web apps?" at 32C3. Now, in 2024, it is precisely 10 years after Rowhammer was discovered. Thus, we believe it is time to look back and reflect on the progress we have made. We have seen a seemingly endless cat-and-mouse security game with a constant stream of new attacks and new defenses. We will discuss the milestone works throughout the last 10 years, including various mitigations (making certain instructions illegal, ECC, doubled-refresh rate, pTRR, TRR) and how they have been bypassed. We show that new Rowhammer attacks pushed the boundaries further with each defense and challenge. While initial attacks required native code on Intel x86 with DDR3 memory, subsequent attacks have also been demonstrated on DDR4 and, more recently, DDR5. Attacks have also been demonstrated on mobile Arm processors and AMD x86 desktop processors. Furthermore, instead of native code, attacks from sandboxed JavaScript or even remote attacks via network have been demonstrated as well. Furthermore, we will discuss how the Rowhammer effect can be used to leak memory directly, as well as related effects such as Rowpress. We will discuss these research results and show how they are connected. We will then talk about the lessons learned and derive areas around the Rowhammer effect that have not received sufficient attention yet. We will outline what the future of DRAM disturbance effects may look like, covering more recent effects and trends in computer systems and DRAM technology. Finally, an important aspect of our talk is that we invite everyone to contribute to solving one of the biggest unanswered questions about Rowhammer: What is the real-world prevalence of the Rowhammer effect? How many systems, in their current configurations, are vulnerable to Rowhammer? As large-scale studies with hundreds to thousands of systems are not easy to perform, such a study has not yet been performed. Therefore, we developed a new framework to check if your system is vulnerable to Rowhammer, incorporating the state-of-the-art Rowhammer techniques and tools. Thus, we invite everyone to participate in this unique opportunity at 38C3 to join forces and close this research gap together. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/ten-years-of-rowhammer-a-retrospect-and-path-to-the-future/

In an accelerating climate crisis, renewable energy and electrification are the most important tools to reduce greenhouse gas emissions. However, in sectors where electrification is infeasible or impossible, other solutions will be needed. While hydrogen gets a lot of attention, it suffers from challenges like being difficult to transport and store. While it does not receive nearly as much attention as hydrogen, another molecule, methanol, could play a crucial role in bringing down emissions in challenging sectors like shipping, aviation, or the chemical industry. Methanol is the simplest carbon-containing liquid and is currently almost exclusively made from fossil fuels. However, it could be made by utilizing renewable energy, green hydrogen, and carbon dioxide, and such green methanol could play an important role in a climate-neutral future - both as a fuel and as a chemical feedstock[1]. Methanol is relatively easy to store and transport. It could provide energy during times with little sun and wind and possibly even balance multi-year fluctuations [2][3]. It could also serve as a shipping fuel and, indirectly, help make aviation fuels. Furthermore, it could form the basis of a fossil-free production of chemical products like plastics [4][5]. That raises important questions about stranded assets in today's chemical industry, as the existing plastic production with steam crackers could become obsolete. Despite its prospects, methanol is no magic silver bullet. Making it from CO2 requires enormous amounts of energy. It should be used carefully and only where efficient direct electrification is infeasible (no methanol car, sorry). Alternative production pathways using climate-friendly biomass and waste have turned out to be challenging in the past, but they could lower some of the enormous energy needs. [1] [From Coal enabler to the Minimal Green Methanol Economy, Industry Decarbonization Newsletter, 2024](https://industrydecarbonization.com/news/from-coal-enabler-to-the-minimal-green-methanol-economy.html) [2] [Ultra-long-duration energy storage anywhere: Methanol with carbon cycling, Joule, Brown, Hampp, 2023](https://www.cell.com/joule/abstract/S2542-4351(23)00407-5) [3] [Should we burn Methanol when the Wind does not blow?, Industry Decarbonization Newsletter, 2023](https://industrydecarbonization.com/news/should-we-burn-methanol-when-the-wind-does-not-blow.html) [4] [Climate change mitigation potential of carbon capture and utilization in the chemical industry, PNAS, Kätelhön et al, 2019](https://www.pnas.org/doi/full/10.1073/pnas.1821029116) [5] [How to make Plastics without Fossil Fuels, Industry Decarbonization Newsletter, 2023](https://industrydecarbonization.com/news/how-to-make-plastics-without-fossil-fuels.html) Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/is-green-methanol-the-missing-piece-for-the-energy-transition/

Der Vortrag wirft einen sozialwissenschaftlichen Blick auf die Ideologie des Longtermismus. Seine Funktion im digitalen Kapitalismus wird analysiert. Mithilfe von Klassikern der Soziologie wird dargestellt, warum sich diese Ideologie in eine faschistische Richtung entwickelt. Longtermismus ist die neue Hype-Ideologie des Silicon Valley. Elon Musk und Sam Altman haben sich als Anhänger geoutet, er ist die offizielle Firmenpolitik von OpenAI. Longtermismus postuliert, dass wir uns nicht mit der Gegenwart oder der nahen Zukunft beschäftigen sollten, sondern unser politisches Hauptaugenmerk auf die Entwicklung eines Computerhimmels in ferner Zukunft richten sollten. Zentral sind dabei Annahmen über die Entwicklungsmöglichkeiten von künstlicher Intelligenz, die deutlich religiöse Züge tragen. Der Vortrag stellt die Ergebnisse soziologischer Forschung zu dieser neuen Ideologie vor. Denn so neu ist das ganze gar nicht. Die „Moral“ des Longtermismus passt erstaunlich gut zu den Geschäftszielen der Digitalkonzerne und macht aus diesen eine Metaphysik. Diese soziale Funktion des Longtermismus ähnelt damit der Funktion, die Max Weber für den Protestantismus als „Geist“ des Kapitalismus im Frühkapitalismus ausgemacht hat. Wie der Protestantismus früher dient der Longtermismus heute einerseits als metaphysische Rechtfertigung der Geschäftsmodelle von Unternehmen und andererseits als individuelle Moral, die ihre Anhänger*innen zu mehr Leistung animieren soll. Gegenwärtig erleben wir einen Rechtsruck im Longtermismus, dessen prominente Vertreter*innen wie Elon Musk oder Peter Thiel sich offen für Donald Trump positionieren. Auch hier ähnelt die Entwicklung des Longtermimsus vergleichbaren früheren Ideologien. Klassische Analysen zeigen, warum individualistische Leistungsideologien das Potenzial haben, in eine faschistische Richtung zu kippen. Der Rechtsruck der Silicon-Valley-Eliten wird so verständlich. Abschließend wird auf den Einfluss von Musk und Thiel auf die US-Wahlen eingegangen und versucht, die weitere Entwicklung abzuschätzen. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/longtermismus-der-geist-des-digitalen-kapitalismus/

Kommunaler Klimaschutz ist oft undurchsichtig, komplex und bürokratisch – das wollen wir ändern! Als gemeinsames bewegungsübergreifendes Projekt "Stadt.Land.Klima!" machen wir (fehlenden) kommunalen Klimaschutz sichtbar, messbar & verständlich! Mit einem einheitlichen Maßnahmenkatalog können alle klimainteressierten Menschen den Fortschritt ihrer Stadt oder Gemeinde bewerten und in unserem Ranking sichtbar machen: https://www.stadt-land-klima.de/municipalities Darüber hinaus möchten wir die vielen verschiedenen lokalen Akteure der Klimagerechtigkeitsbewegung in den einzelnen Kommunen zusammenbringen, Kooperationen fördern und Erfolgsprojekte einzelner Gruppen deutschlandweit teilen! Kommunaler Klimaschutz ist oft undurchsichtig, komplex und bürokratisch – das wollen wir ändern! Stadt.Land.Klima! ist ein gemeinsames bewegungsübergreifendes Portal für kommunalen Klimaschutz, was den Forschritt von Kommunen beim Klimaschutz sichtbar & messbar machen will. Das Herzstück davon ist ein klares Ranking, das zeigt, wie viele Klimaschutzmaßnahmen ein Ort bereits umgesetzt hat. Statt komplizierter CO₂-Bilanzen zählt der Maßnahmenkatalog konkrete Schritte zur Klimaneutralität - und ist gleichzeitig eine Roadmap für die Kommune auf dem Weg zur Klimaneutralität. Die Bewertungen kommen direkt von den Klimaaktiven vor Ort – z.B. von ForFuture-Ortsgruppen, LocalZero-Lokalteams oder lokalen Klimainitiativen. Aber der Plan geht über das Ranking hinaus: Wir wollen die vielen Initiativen, Angebote und Projekte der Klimabewegung vor Ort zusammenbringen, Kooperationen zwischen Organisationen fördern und Klima-Erfolgsprojekte einzelner Gruppen deutschlandweit teilen! Stadt.Land.Klima! wird komplett ehrenamtlich betrieben - von den Lokalteams, unserem SocialMedia-Team, unseren Designer- und Developer:innen und verschiedensten Fachexpert:innen. Die Applikation ist Open-Source und freut sich immer über Contributions: https://github.com/StrategieLukas/stadt-land-klima Gemeinsam wird kommunaler Klimaschutz sichtbar und wirksam. Mach mit & bewerte DEINE Kommune! Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/stadt-land-klima-fr-transparenz-im-kommunalen-klimaschutz/

All I wanted was for Microsoft to deliver my phishing simulation. This journey took me from discovering trivial vulnerabilities in Microsoft's Attack Simulation platform, to a Chinese company to which Microsoft outsourced its support department that wanted all my access tokens. I finally ended up hijacking remote PowerShell sessions and obtaining all data from random Microsoft 365 tenants, all the while reeling in bug bounties along the way. This talk is the result of what happens when you ask a hacker to simply automate sending out a phishing simulation. My first attempt with Microsoft's new Attack Simulation platform resulted in three bug bounties for the most trivial vulnerabilities and no more faith in the product. Then I tried building a phishing simulation program myself and the last thing I needed was to allowlist my IP address in Exchange Online. I ended up in a rabbit hole where I discovered that Microsoft outsourced their support department to a Chinese company that wanted all my access tokens. I then tried intercepting client-side requests made by the Security & Compliance center with the goal of replaying these to a backend API, only to discover that by fiddling with some parameters I could now hijack remote PowerShell sessions and access Microsoft 365 tenants that were not mine. Tenants where I could now export everything, e-mail, files, etc. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/from-simulation-to-tenant-takeover/

We present Milksad, our research on a class of vulnerabilities that exposed over a billion dollars worth of cryptocurrency to anyone willing to 'crunch the numbers'. The fatal flaw? Not enough chaos. Learn how we found and disclosed issues in affected open source wallet software, brute-forced thousands of individual affected wallets on a budget, and traced over a billion US dollars worth of prior transactions through them. In July 2023, people in our circle of friends noticed a series of seemingly impossible cryptocurrency thefts, which added up to over one million US dollars. A common denominator was discovered across the set of victims we knew: the wallet software `libbitcoin-explorer`. Vulnerable versions used a weak pseudorandom number generator when creating cryptocurrency wallets. Within a short period of time, we disclosed the vulnerability, [CVE-2023-39910](https://milksad.info/disclosure.html). Using this weakness, attackers were able to compute private keys of victims, which is supposed to be impossible under normal circumstances. In this talk we * 📜 - tell the story of uncovering a digital currency heist * 🌐 - dive into similar vulnerabilities * 🔍 - trace the movement of coins * ⚖ - outline ethical challenges of cryptocurrency security research * 🛡 - explore methods to defend and protect against this bug class Our intention is to share the story of how little details can have big consequences and the importance of quality chaos. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/dude-where-s-my-crypto-real-world-impact-of-weak-cryptocurrency-keys/

Ich lese aus einem antiken Werk zu Computerablürzungen vor Abkürzungen können alle verwirren, die sich noch nicht länger mit Computern beschäftigen. Aber auch der:dem Veteran:in sind nicht alle Abkürzungen bekannt oder weißt Du, dass IFE für intelligent front end steht, CAFS für Content Adressable File System oder RUN der Befehl ist, um Programme in BASIC auszuführen? Dieser Missstand muss behoben werden und wird es durch eine Lesung aus einem Kompendium gängiger PC-Abkürzungen. Damit auch was für Kenner:innen dabei ist, stammt das Kompendium aus 1994. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/pc-abkrzungen-eine-lesung/

A couple years ago I knew basically nothing about Single Sign-On but now I'm talking at 38c3 about it! Come find out how you too can go from beginner to the question-asker who protects your hackerspace/company/etc. from bad SSO implementations. Single Sign-On (SSO) is sold as a way to • centralize managing your organization’s users, • make life easier for your colleagues, and • enforce consistent security standards. But SSO protocols are just ways for an identity provider to share information about an authenticated identity with another service. Me having a way to tell my vendor “yeah, that’s Bob” doesn’t tell me what the vendor does with this information, or if the vendor always asks me who’s coming in the door. A bad SSO implementation can make you think you’re safer, while hiding all the new and fun things that have gone wrong. To get the most out of implementing SSO, I need to know what I’m trying to accomplish and what steps I need to follow to get there. To illustrate why SSO needs to be set up carefully, for each of the things you need to do right, I’ll give you some fun examples of creative ways you and your vendor can do this wrong. We all learn from failure, right??? I’m sharing this info because this year I got deeply involved in the SSO setup for several vendors at work. It turns out that I’m good at asking weird questions, and it’s an extremely valuable thing to do. If you know how things should be, then you know where they could be broken, and you can ask your vendors (and your colleagues!) “weird questions” before an adversary does. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/omg-wtf-sso-a-beginner-s-guide-to-sso-mis-configuration/

You are not immune to propaganda and the only winning move is to first recognize you are forced to play The Game Meme Warfare - das heißt schnelllebige, leicht konsumierbare Propaganda auf Social Media. Jeden Tag sind wir Ziel absichtlicher Meinungsmanipulation - noch mehr wenn es mal wieder auf eine Wahl zugeht. Eine der wichtigsten Punkte von Medienkompetenz ist Propaganda und sog. "Fake News" zu erkennen, informiert damit umzugehen und sich vor Einflussnahme zu schützen. Aber wie? Wenig Dinge begegnen uns in unserem Alltag heutzutage häufiger wie Werbung, Propaganda und Desinformation. Dass diese Dinge messbare Effekte auf die Psyche haben und nur deswegen so omnipräsent sein können, machen wir uns als Gesellschaft schon gar nicht mehr klar. Wir sehen aber immer wieder in den Wahlergebnissen und politischen Skandalen der letzen 10 Jahre wie die öffentliche Meinung gezielt beeinflusst wird und wir spüren wie da etwas kippt in unserer Demokratie. Der Talk ist eine kurze Einführung ins Thema und umfasst drei kurz und knackige Themenblöcke: Was ist überhaupt Propaganda und warum sollte mich das interessieren? Wie sieht Propaganda im Zeitalter von Internet und Social Media aus? Und wie kann ich mich und meine nächsten vor Beeinflussung schützen? Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/selbstverteidigungskurs-meme-warfare/

The Hacker Jeopardy is a quiz show. The well known reversed quiz format, but of course hacker style. It once was entitled „number guessing for geeks“ by a German publisher, which of course is an unfair simplification. It’s also guessing of letters and special characters. ;) Three initial rounds will be played, the winners will compete with each other in the final. The event will be in German, we hope to have live translation again. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/hacker-jeopardy/

This performative lecture by SOLID FLESH Collective explores how generative AI can reshape historical body representations into tools for imagining new bodily futures. Drawing from Muybridge’s chronophotography, which fixed bodies into a rigid scientific grid, we investigate AI’s capacity for fluid, multidimensional embodiment. Using open-source AI models to ‘resurrect’ Muybridge’s subjects and defy commercial censorship, we reveal speculative possibilities for bodily motion and identity. Our work positions the ‘vector body’—a digitally-mediated form of self-imagination—within a broader conversation on identity fluidity, algorithmic embodiment, and liberating futures beyond conventional body ideals. In this performative lecture, the SOLID FLESH Collective reimagines how artistic practice can transform historical methods of body representation into tools for imagining radical new forms of embodiment. SOLID FLESH Collective, a hybrid space bridging the realms of gym, gallery, and think tank, examines how Muybridge’s chronophotography once ‘solidified’ bodies within a rigid grid, contrasting it with generative AI’s potential for unprecedented fluidity in self-reimagining. We present a series of experiments in ‘resurrecting’ Muybridge’s subjects, using open-source AI tools to transform scientific documentation into speculative fictions. When commercial AI flagged these Victorian images as ‘pornographic,’ this rejection spurred us to explore alternate approaches, resulting in the creation of wonderfully surreal, inhuman movements with animDiff—as if the AI, uninformed by human motion, were an animator imagining it for the first time. The lecture positions the AI-mediated body within a multidimensional vector space of possibilities, spanning dimensions of gender, age, class, and experience. Through our custom ComfyUI workflow and selected clips from our ongoing film project (solidflesh.com), we show how this ‘vector body’ allows for forms of self-imagination that break free from the solidifying gaze of the camera. Our technical explorations engage larger questions around identity fluidity, algorithmic embodiment, and the possibility of a new, digitally mediated somatic imagination. As mainstream AI development often reinforces conventional body ideals, we speculate on alternative futures, asking how these technologies might instead enable liberating bodily self-conceptions. Moving beyond Muybridge’s grid and current AI’s polished limitations, we explore what approaches to algorithmic embodiment might emerge when we embrace the glitches and ‘failures’ of these systems. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/hacking-victorian-bodies-from-grid-to-vector-space/

Bildervortrag zum Thema "Nachhaltige Inneneinrichtung" mit Mitbringseln zum Anfassen sowie Tipps & Tricks zu Konstruktion, Gestaltung und Durchführung Holz ist als nachwachsender Rohstoff ein umweltfreundliches Baumaterial, hat als Naturprodukt jedoch seine Eigenheiten. Der Vortrag geht auf die Basics der Holzbearbeitung ein, worauf geachtet werden muss und wie stabile Verbindungen oft völlig ohne Leim oder Schrauben hergestellt werden können. Die Bilder dazu verfolgen zwei Projekte von der Konstruktionszeichnung über die rohen Bohlen bis zum fertigen Produkt und geben Einblicke in das Handwerk, das oft auch ohne Maschinen auskommen kann. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/mal-was-mit-holz/

ChaosGPT hat den Weg wie wir denken revolutioniert! Die kongresserprobte Technik wird endlich _open source_, CEO Gitte Schmitz und CRO Deliria Tremenz feiern in dieser Keynote den Release des Large Congress Model und erklären, was wirklich in AI steckt. Beim diesjährigen Kongress hat ChaosGPT erfolgreich hunderte von Anfragen prozessiert und dabei für alle erdenklichen User-Anfragen erstaunlich genaue Antworten erzeugt: und das ganz analog! Als _community-sourced_ generatives Wissensmodell wurden diese sensationellen Erfolge mit einem herausragenden Energieverbrauch von 0 kWh erreicht (in anderen Worten: extrem Klimaneutral!). War es bisher eine Black Box? Ja! Wird es OpenSource? Auf jeden Fall!* Das Leitungsteam ist stolz, endlich den gesamten Code hinter ChaosGPT und dem Large Congress Modells (L38C3M) lüften zu können. Nach monatelanger Entwicklungszeit wird es Zeit, das Folle Potential von Analoge Intelligence an die Community zurückzugeben.** Exklusiv geben CEO Gitte Schmitz und CRO Deliria Tremenz einen Einblick hinter die Kulissen des blühenden New-New-Tech StartUps. Mit spielender Leichtigkeit verbinden sie den Track **Queerness** mit dem **Digitalzwang**, und generieren mit ihren Antworten erheblichen Mehrwert für potentielle Angel Investors (und solche die es werden wollen). Lasst uns die verkannten Potentiale der AI lüften! *Die genutzte Open Source-Definition von Studio Gitte Schmitz umfasst auch die _business models_ "Open Window" und "Freemium". ** Eventuelle Nutzungsentgelte werden weiterhin entsprechend Nutzungsordnung (NuOrG §283 Abs.15f) erhoben. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/release-keynote-chaosgpt-und-das-large-congress-model/

Ever wondered why your web server seems to be under constant attack from what feels like everyone on the internet? Me too! Join me in this session where we'll explore the data of millions of attacks from hundreds of sensors around the world, to identify who is attacking us from where and why. Additionally, we will have a look into how we can use that data to get abusive systems taken down, and how successful this approach actually is. Buckle up for a deep dive into the constant battle to protect systems on the internet against adversaries gaining access, and how you can help make the internet a safer place! Looking at the 2024 M-Trends report, brute force is still one of the main reasons for adversaries to gain access and compromise companies. In fact, 6% of all initial access is done via brute force. Knowing this, as well as that attackers are constantly trying all sorts of attacks against any internet-connected device, there seems to be a gap between what is currently mostly done (block the attack) versus what should be done (report and take down the attacker)! This talk will start with a short introduction on how to set up a system that is able to collect attacks from distributed sensors, enrich them at a central location, as well as use the data to reach out to ISPs and other governing bodies to report the abuse. The sensors are Docker containers with modified OpenSSH servers that will block any login attempt, no matter which username and password combination is used, as well as log the timestamp, source IP, username, and password to a central location. Using this, the so-called "attack pot" is indistinguishable from other Linux systems, ensuring that no suspicion on the attacker's side is raised. For the enrichment part, the ISP's contact data is identified, and abuse notifications are sent via multiple channels to initiate a take down. Furthermore, automated bots monitor if the take down was successful and how long it took, allowing us to share some information on how successful this approach is, which ISPs are more cooperative, and where it is nearly impossible to get any system taken down. Generally, lessons learned with what could be potentially done better will be discussed! The second part of the talk will focus on the analysis of the collected attacks. Across all of the attacks, multiple clusters, which likely are adversarial groups moving from one target to another, could be identified. Furthermore, by analyzing the used credentials, there seems to be some correlation between internet-identifiable information like DNS, region, or OS and the credentials used in an attack. This will allow defenders to get a better understanding of how to defend and even put out decoy information to quickly identify attacks. The closure of the presentation will be an outlook on what could be done better from an ISP or governing body side to speed up take downs of adversarial infrastructure, as well as what everyone can do to make the internet a safer place! Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/attack-mining-how-to-use-distributed-sensors-to-identify-and-take-down-adversaries/

Experiences from a hacker working at the Election Council of The Netherlands. After critically following the elections for 8 years from the outside, a hacker was employed as one of the functional administrators of the software supporting the elections. Sharing experiences of the use of election software during 7 elections (2020-2023), from local, national to European in The Netherlands. A governmental software project with strict deadlines, and high security expectations. The software project for elections in The Netherlands is build an IT organization [owned by German local governments](https://www.regioit.de/unternehmen/zahlen-daten-fakten). More than 10.000 Java files, what can possible go wrong? During this time multiple emergency patches were needed and incidents occur. Although at first explicitly *not* hired as a coder, within 3 months a Java code contribution was made that was unexpectedly more crucial than anticipated. This talk will show some incidents with the election software in The Netherlands: how the software failed, and when/how it was discovered. Go over how seeing the elections from the outside, and give some history of voting computers and software. Ending with some reflecting on the future. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/how-election-software-can-fail/

Wie Rechtspopulisten in Österreich innerhalb von 5 Jahren zurück zu alter Größe kamen und sogar die Wahl gewannen. Die Ibiza-Affäre gilt als einer der größten politischen Skandale in der Geschichte der Zweiten Republik Österreich. Das heimlich aufgezeichnete Ibiza-Video zeigt den damaligen FPÖ-Chef Heinz-Christian Strache und FPÖ-Politiker Johann Gudenus in einer Villa mit einer vermeintlichen Nichte eines russischen Oligarchen. Seit dem ist viel passiert. Zu wenig hat sich zum Guten gewandt aber immerhin ist mittlerweile zumindest oberflächlich klarer geworden wie sehr die einzelnen Skandale die die Alpenrepublik erschütterten seit dem in einander verwoben sind. Die Umwälzungen der letzten Jahre nicht nur in Österreich erlauben es Parallelen zu ziehen auch über die Landesgrenzen hinweg. Die Kausen um den früheren Wirecard Vorstand Jan Marsalek, seines Zeichens zufällig auch Österreicher, lassen sich mit dem Gesamteindruck von Ibiza schlüssig verknüpfen. Die geopolitischen Umwälzungen wie auch die politischen Herausforderungen die selbige für Europa mit sich bringen sollten am Beispiel von der Alpenrepublik nicht nur als Belustigung dienen. Wie schnell und wie weit eines der Vorbilder der EU Länder unter den richtigen Gegebenheiten und Einflüssen sich zum Paria wandeln kann sollte als ernstzunehmende Warnung auch in Deutschland verstanden werden. Wenn die Säulen der Demokratie ins Wanken geraten ist es oft sehr viel schneller beim Ernstfall als die meisten es sich einreden wollen. Österreich mag klein sein, manchmal auch speziell aber die Faktoren die innerhalb kürzester Zeit von einem Musterschüler ein Sorgenkind machten sind nicht kleinzureden. Fünf Jahre später, im September 2024, wurde die FPÖ mit 29,2 Prozent erstmals Sieger bei einer Parlamentswahl. Mittlerweile steht sie in Prognosen bei über 35% und der allgemeine politische Diskurs hat sich meilenweit verschoben. Es ist Vorsicht geboten. Nicht nur in Österreich Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/5-jahre-nach-ibiza/

Beginners can now create off-grid, encrypted mesh networks for cheap, with applications in emergency communication, sensor monitoring, and more! These mesh networks have been popping up in cities all over the world, and this talk will go over everything a beginner needs to run or build their own nodes. If you've ever wanted to legally create off-grid, encrypted mesh networks that can span over a hundred miles, you can get started with Meshtastic for around $10. This talk will serve as a beginner user's guide to Meshtastic, covering everything from hardware basics to advanced software configuration. We will explore making custom Meshtastic hardware, real-world results from deploying Meshtastic in Los Angeles, and attacks against mesh networks. Attendees will learn about LoRa, Meshtastic node and antenna options, software setup and configuration to extend its functionality, and real-world deployments of remote nodes. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/hacker-s-guide-to-meshtastic-off-grid-encrypted-lora-meshnets-for-cheap/

The exploratory nature of artistic research can aide in the production of knowledge. Sometimes, this takes a detour through music-making mushrooms and making moonshine, sometimes it deals with societal reverberations of AI usage or how lithium extraction affects the planet. This talk gives an insight on how we do technology-assisted artistic research at ZKM | Hertzlab, the artistic research & development department of the Center for Art and Media, Karlsruhe. Artistic research takes the exploratory impulse of art and combines it with the wish for knowing the world that characterizes scientific research. It is neither science communication, nor purely artistic practice - it is located somewhere in between. As a field of its own, artistic research is still relatively young; at ZKM | Center for Art and Media, Karlsruhe, we explore what this means in the context of one of Europe's oldest media art institutions. Our six themes - lifecycles, connect, a common(s) world, ai-lab, post-human world, fellow futures - guide us in what we hope is a contribution to larger discourses from the point of view of art. With examples and projects, this talk will illuminate artistic research practices, its benefits and challenges and how having a hacker mindset is the first step into becoming an artistic researcher. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/mushroom-djs-strong-ai-climate-change-connecting-the-dots-with-artistic-research/

Das CERT - der allseits bekannte Sanitäts- und Brandschutzdienst des Congresses - ist wie alles andere auch gewachsen. Dazu gehört, dass Patient\*innen- und Einsatzverwaltung auf Klebezetteln langsam aber sicher nicht mehr skaliert. Jede\*r auf dem Congress kann mal Hilfe vom CERT benötigen. Um Einsätze zu verwalten, zu protokollieren und zu managen hat der Sanitäts- und Brandschutzdienst der CCC Veranstaltung GmbH in der Vergangenheit vor allem auf Whiteboards und Papier gesetzt. Durch das Wachstum der letzten Jahre skaliert das aber nicht mehr und es musste eine übersichtliche und auf die besonderen Bedürfnisse zugeschnittene Software entwickelt werden. Auftritt: THOT - Trouble Handling Operations Terminal, die neue Einsatzsteuerungs- und Patient\*innenmanagementsoftware des CERT, das im Rahmen des Congresses als Open Source Projekt endlich in die Community entlassen wird. Welche Daten erhoben und wie sie verarbeitet werden wenn es brennt, ihr euch verletzt oder schlimmeres passiert möchten wir euch in diesem Vortrag transparent machen, Fragen beantworten und die Möglichkeit geben, das System im Nachgang selbst unter die Lupe zu nehmen. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/k-ein-beinbruch-datenverarbeitung-im-cert/

After years as a journalist and filmmaker covering topics like crypto, holocaust and showbiz, everything changed for me 3 years ago after the birth of my daughter. While I haven't planned to be a mother, I decided to keep this pregnancy at 41, however this grass turn out to be too high for lawn mower – I was ready to go for a rave, not to be locked in a baby dark room for 3 years. I felt like my brain had been reprogrammed overnight. The analytical mindset I once relied on—quick to analyse, explore, and understand complex topics—seemed to vanish, replaced by a simpler, instinct-driven state that prioritized pure survival and nurturing yet mixed with unhinged chaos, aux naturelle psychedelic downloads plus no sense of inhibition or fear of being seen. Hand cuffed to a rainbow I was gazing at the black clouds. Despite the shock at this involuntarily IQ transplant, I quickly realised this new mind-tool-set was all in all fulfilling and liberating. I became my own fire brigade with an alternative emergency strap-on. Without the pressure to think analytically, I began channelling this raw energy into my joke band PUShY PUShY PUShY, creating what I now call postpartum punk movement. The idea caught on – this summer we have been featured in the Guardian and The New Yorker. This fuels my missionarism towards another level: how can we embrace this wild, intuitive mindset, not only as parents but as people? And could new technologies help us experience or even learn from this state? In this talk, I’ll share my story and propose some solutions to help people connect and utilise with this raw, abstract, flippant side of the mind, whether or not they’ve experienced parenthood: haptic births, transcranial nursering, chaos VR sessions, neurofeedback baths, quantum aerobics, algorithm jams, and 'Near-Birth-Experiences' Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/postpartum-punk-make-space-for-unfiltered-creativity/

Sogenannte Generative KI hat einen hohen Rechenbedarf und braucht damit automatisch viel Energie. Wir wollen zeigen, was die AI-Bubble uns alle bisher an Ressourcen gekostet hat. Wer verdient sich daran dumm und dusslig? Und wer trägt die ökologischen und sozialen Kosten? Sogenannte „Generative KI“ ist nicht nur ein Hype-Thema in Politik und Gesellschaft, mit ihr schießen auch die benötigten Rechenkapazitäten in die Höhe. Der Energiebedarf ist so hoch, dass Google, Microsoft und Meta 2024 nacheinander ihre Klima-Ziele zurücknahmen und nun auf dubiose Kernkraft-Lösungen umsteigen wollen. Das hat System, denn Big Tech entwickelt und finanziert nicht nur die gehypten KI-Anwendungen, die gleichen Konzerne bieten auch die benötigten Cloud-Kapazitäten an. Von Chile, Spanien bis nach Taiwan – weltweit regen sich Proteste gegen die Infrastruktur hinter dem KI-Boom, von neuen Bergbauprojekten, Chipfabriken bis zu Hyperscale-Rechenzentren. Der steigende Energie-, Wasser- und Ressourcenverbrauch feuert die Klimakrise an, bedroht Ökosysteme und verletzt indigene Landrechte – für erhoffte Milliardengewinne auf der Seite von Big Tech. In diesem Vortrag schauen wir auf die ökologischen und menschenrechtlichen Kosten des KI-Booms. Wir tragen die Fakten zusammen und liefern kritische Analysen und Argumentationshilfen zum KI-Hype. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/klimaschdlich-by-design-die-kologischen-kosten-des-ki-hypes/

Kein Congress ohne "Gala Be Need Inn" , der deutschsprachige Quizpodcast dessen Name ein Anagramm des Originals ist. Wir klären die wirklich wichtigen Fragen des Lebens: Was ist ein Alarmstuhl, was ist die Kotzkurve und wieso haben Schaffner in Frankreich Knallerbsen dabei? Seid dabei, auf der Bühne oder im Publikum! Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/gala-be-need-inn-38c3-ausgabe/

Ist Cybercrime der attraktivere “Arbeitsplatz” für Menschen, die aus dem stereotypischen Rahmen des Bildes eines IT-lers fallen - im Gegensatz zur Cybersecurity? Wir decken auf! "Wir leben doch längst in einer gleichberechtigten Welt!", sagen manche. Doch mal ehrlich, wer von euch denkt bei einem Man-in-the-Middle-Angriff an eine Hackerin? Wir sprechen über Hürden und Herausforderungen, denen Menschen, die nicht dem Stereotypen-Bild des IT-lers entsprechen, heute immer noch begegnen. Von absurd hohen Einstiegshürden über Kompetenzabsprechungen bis hin zu völlig anderen Maßstäben für Auftreten und Aussehen - wir decken Mechanismen von Benachteiligung und Diskriminierung auf. Mit lebhaften Geschichten, die wir selbst als Frauen in der Cybersecurity erlebt haben, vielen Interviews mit FINTAS und aktuellen Trendzahlen zeichnen wir ein anschauliches Bild dieser Realität. Wir erzählen darüber hinaus entsprechende Geschichten aus anderen Berufsfeldern. Doch das Bild hat zwei Seiten: Die Unterschätzung von Kompetenzen kann ein unerwarteter Vorteil sein, besonders in der Welt der Cyberkriminalität. Wenn Nicht-Stereotypische Hackende im digitalen Untergrund agieren, ergeben sich neue, überraschende Perspektiven. Wir beleuchten die Gleichstellung im Cybercrime und fragen uns: Was können wir hieraus lernen und für bessere Arbeitsbedingungen in legalen Berufszweigen übernehmen? Dazu haben wir einen Hack, den wir vorschlagen möchten und der aus unserer Perspektive helfen würde, dass alle Menschen Ihr Recht auf freie Berufswahl, freie Entfaltung und weitere Menschenrechte auch wirklich zugestanden bekommen - Damit alle Wesen dieses Universums ein Leben in Frieden und Freiheit genießen können. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://events.ccc.de/congress/2024/hub/event/woman-in-the-middle/