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Schedule

Der Hub wird spätestens Ende Januar archiviert, alle nutzerbezogenen Inhalte, Boards und auch einige Wiki-Seiten werden dabei entfernt. Alle öffentlichen Assemblies, Projekte und Veranstaltungen bleiben. // The hub will be archived by end of January. All user-provided content, boards and several wiki pages will be deleted. All public assemblies, projects and events will remain.

List
Calendar

Day 1 Day 2 Day 3 Day 4

recorded only not recorded only

Tracks

CCC & Community Hardware Security Art & Beauty Ethics, Society & Politics Science Live Performance DJ-Set Entertainment Clear track filter

Day 2
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One

Verlorene Domains, offene Türen - Was alte Behördendomains verraten (de)

Tim Philipp Schäfers (TPS)

Was passiert, wenn staatliche Domains auslaufen - und plötzlich jemand anderes sie besitzt? In diesem Vortrag wird berichtet, wie mehrere ehemals offizielle, aber unregistrierte Domains deutscher Bundesministerien und Behörden erworben werden konnten - und welche Datenströme dadurch sichtbar wurden. Über Monate hinweg konnten so DNS-Anfragen aus Netzen des Bundes empfangen werden - ein erhebliches Sicherheitsrisiko. Unter anderem da es so möglich war Accounts zu übernehmen, Validierungen von E-Mailsignaturen zu manipulieren, Anfrage umzuleiten und im Extremfall Code auf Systemen auszuführen. (Keine sensiblen Daten werden veröffentlicht; der Fokus liegt auf Forschung, Aufklärung und verantwortungsvollem Umgang mit den Ergebnissen.)

Fuse

A Quick Stop at the HostileShop (en)

Mike Perry

HostileShop is a python-based tool for generating prompt injections and jailbreaks against LLM agents. I created HostileShop to see if I could use LLMs to write a framework that generates prompt injections against LLMs, by having LLMs attack other LLMs. It's LLMs all the way down. HostileShop generated prompt injections for a winning submission in OpenAI's GPT-OSS-20B RedTeam Contest. Since then, I have expanded HostileShop to generate injections for the entire LLM frontier, as well as to mutate jailbreaks to bypass prompt filters, adapt to LLM updates, and to give advice on performing injections against other agent systems. In this talk, I will give you an overview of LLM Agent hacking. I will cover LLM context window formats, LLM agents, agent vulnerability surface, and the prompting and efficiency insights that led to the success of HostileShop.

How to render cloud FPGAs useless (en)

Dirk

While FPGA developers usually try to minimize the power consumption of their designs, we approached the problem from the opposite perspective: what is the maximum power consumption that can be achieved or wasted on an FPGA? Short answer: we found that it’s easy to implement oscillators running at 6 GHz that can theoretically dissipate around 20 kW on a large cloud FPGA when driving the signal to all the available resources. It is interesting to note that this power density is not very far away from that of the surface of the sun. However, such power load jump is usually not a problem as it will trigger some protection circuitry. This led us to the next question: would a localized hotspot with such power density damage the chip if we remain within the typical power envelope of a cloud FPGA (~100 W)? While we could not “fry” the chip or induce permanent errors (and we tried several variants), we did observe that a few routing wires aged to become up to 70% slower in just a few days of stressing the chip. This basically means that such an FPGA cannot be rented out to cloud users without risking timing violations. In this talk, we will present how we optimized power wasting, how we measured wire latencies with ps accuracy, how we attacked 100 FPGA cloud instances and how we can protect FPGAs against such DOS attacks.

Am Spätverkauf

Punkrock-Songtext-Lesung (de)

tomate, anna

Kultivierte Personen rezitieren Punkrock-Songtexte mit der ganzen Ernsthaftigkeit und dem dramatischen Pathos, wie sonst nur von Goethe-Abenden im Literaturhaus bekannt. Anarchie meets Bildungsbürgertum. Chaos meets Chaiselongue.

Chaos Computer Music Club

The 39c3 Drag Show (en)

Keks

Finally a drag show at the chaos! Blinking lights, colorful outfits, and queers everywhere already seems normal at the congress. So how can it be, that all of this did not come together as drag on stage?! It is time for a really awesome, great drag show at the 39c3! And to show right away how divers drag is, a wonderful cast of drag artists of various genders and expressions can spread their queer joy and art for the audience. The show is hosted by Milky Gay, the nerdiest drag king from NRW, who does not only want to throw glitter at the congress incognito this year. And he is bringing an amazing cast with him Bingus Bongus (Drag Queen, Hamburg) Neuro Spicy (Drag King, NRW) Missass Nostalgia (Drag Queen, NRW) and Kaín Mensch (Drag Thing, Hamburg) will bring their queer art to finally merge chaos and drag! Everyone is welcome, we are trying to have as little barriers as possible to come and watch. No blinking lights during the show (no guarantee for the path there and acts before and after), Music Club accessible with mobility aids and wheel chairs (ask assigned angles). Mostly standing room, few seats at the side might not allow for a good view of the show. Content notes for certain parts of the show include death, cancer, violence, fake weapons, and sexual violence, and will be announced in time so people can leave and come back afterwards. Cheering is encouraged, so it might get loud. (more details tba). Please be nice to each other and especially help short people as well as queers to find a spot where they can see enough. Also, as drag is expensive, there will be a tipping round in the end - please bring some cash if you consider tipping the artists, but of course you are also welcome either way.

Chill Floor

Lila-Zoé Krauß (de)

Lila-Zoé Krauß

L Twills aka Lila-Zoé Krauß ist Musikerin, Performerin und Multimedia-Künstlerin. In ihrer Arbeit entwickelt sie eine transdisziplinäre Opernpraxis, um Fragen zur (post-)moderner Subjektivität und ihrer Beziehung zu Medien, Trauma und Erinnerung zu thematisieren. Sie studierte Bildende Kunst an der HFBK Hamburg und dem CalArts Los Angeles sowie Sound Studies an der UdK Berlin. In ihrer Musik kombiniert sie Elemente aus Downtempo, Experimentalmusik, Breakbeat und Oper mit eigens entwickelten Sounddesign-Techniken. Krauß veröffentlichte 2020 und 2024 die Vinylalben [Freedom/Fiction] und [After her Destruction] und performte auf diversen Bühnen, u.a.: Documenta Fifteen (Kassel), Kampnagel (Hamburg), Volkstheater (Wien), Montez-Press Radio (NYC), NAVEL (Los Angeles).

Gajek (de)

Unnamed user

Gajek produces and performs electronic music. Since 2014 He released five studio albums on Labels such as STROOM, Infinite Greyscale, Throttle Records and more. Gajek composes music for films and theatre. He has performed at major international venues and festivals such like Berghain, silent green, Printworks London, Traumabar Und Kino, ADE Amsterdam, Melt Festival and many more. Gajek lives and works in Berlin.