BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//39th Chaos Communications Congress//events in SoS Stage H
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:events in SoS Stage H
BEGIN:VEVENT
SUMMARY:C3GELB: Hygieneschulung nach § 43 IfSG ("Frikadellendiplom")
DTSTART:20251227T130000Z
DTEND:20251227T135000Z
DTSTAMP:20260511T211022Z
UID:46dd5757-308b-4b32-9c42-94c3e1fe7ec3
CATEGORIES:official
DESCRIPTION:Hygiene Training according to § 43 IfSG (German Infection Pro
 tection Act)\n\nWe are again conducting hygiene training sessions — the 
 "Meatball Diploma"\, as it's called in German slang — for everyone invol
 ved in food preparation for others.\n\nThe goal is to raise awareness of a
  hygienic environment surrounding the preparation and serving of food at 3
 9C3 and\, consequently\, to contribute to a higher level of healthiness of
  us all.\n\n\nIdeally\, this training is preceeded initially by an instruc
 tion by the relevant public health department (Gesundheitsamt). Even bette
 r\, of course\, is if you have already attended "follow-up training"\, for
  example\, at 38C3 or CCCCamp.\n\nIf you have any relevant documents\, ple
 ase bring them along so we can update\, stamp\, and sign your proof of tra
 ining. :-)\n\nOf course\, we also welcome everyone who is joining us for t
 he first time without prior training from the public health department and
 /or without any prior knowledge of food hygiene at all.\n\n\nWe look forwa
 rd to seeing you! - Be excellent to each other :-)\n\nTeam C3GELB (DECT 43
 52)
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/c3gelb-hygienesch
 ulung-nach-43-ifsg-frikadellendip
END:VEVENT
BEGIN:VEVENT
SUMMARY:Freifunk zum Anfassen und Router zum Mitnehmen
DTSTART:20251227T140000Z
DTEND:20251227T142500Z
DTSTAMP:20260511T211022Z
UID:97a02c3f-4130-481e-a101-345adab3f701
CATEGORIES:official
DESCRIPTION:Freifunk\, was soll das? Ich soll mein Internet mit anderen te
 ilen\, wozu das denn? Wie geht das überhaupt? Wer braucht heutztage noch 
 WLAN von anderen Leuten wenn doch eh alle Mobilfunkflatrates haben?  \n\nA
 ll diese Fragen und weitere beantworten wir dir und haben sogar direkt noc
 h freifunkfähige Router dabei\, bei denen wir euch gern helfen diese für
  Freifunk einzurichten.  Damit könnt ihr daheim direkt mitmachen.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/freifunk-zum-anfa
 ssen-und-router-zum-mitnehmen
END:VEVENT
BEGIN:VEVENT
SUMMARY:Foundation workshop: Hands-on\, how does the Internet work?
DTSTART:20251227T163000Z
DTEND:20251227T165500Z
DTSTAMP:20260511T211022Z
UID:4f315736-fc43-4111-b01c-bc958ca3a360
CATEGORIES:official
DESCRIPTION:This workshop is for all who do not know at all or only have a
  vague idea what an “IP address” is. We’ll learn how the Internet wo
 rks by making Internet traffic visible. This is a beginner’s workshop. I
 f you toyed with Wireshark before\, you will be bored to hell in this work
 shop.\n\nInvisible to the casual user\, lots of computers communicate and 
 work together to deliver the kitten videos you’re craving. In this works
 hop\, we use the tool Wireshark (available for all operating systems) to m
 ake this communication visible. In lots of life demos\, we’ll learn that
  the domain names we’re familiar with\, like ccc.de or fridaysforfuture.
 de\, are a thin layer around IP addresses\, which are the real addresses c
 omputers use to identify themselves. We’ll uncover which hidden informat
 ion your browser sends along each request\, and we’ll see how easy it is
  to intercept traffic.\n\nThis workshop is for everybody who is interested
  in knowing how the Internet works\, in which form computers talk to each 
 other. Absolutely no prerequisites are required. People who are familiar w
 ith network stacks will be bored to hell.\n\nNote to the infrastructure te
 am: In the final part of the talk\, we’ll perform a standard ARP spoofin
 g attack to intercept traffic from a volunteer and display their website l
 ogin password on the projector. Of course we won’t use the congress netw
 ork for this. I’ll use an hotspot of my own.\n\n**[Transcript](https://c
 haos.quasicoherent.io/)**
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/foundation-worksh
 op-hands-on-how-does-the-internet
END:VEVENT
BEGIN:VEVENT
SUMMARY:Debanking und die Folgen für die Rote Hilfe e.V.
DTSTART:20251227T170000Z
DTEND:20251227T172500Z
DTSTAMP:20260511T211022Z
UID:f45041b3-4fec-445c-9f0d-a956f30a43cc
CATEGORIES:official
DESCRIPTION:Die Rote Hilfe hat\, wie viele weitere linke Organisationen in
  den letzten Wochen auch\, ihre Konten verloren. Politische Entscheidung d
 er Trump-Administration führten dazu. Über das SWIFT-System kann die USA
  auch hierzulande bestimmen\, wer ein Konto erhält\, wer nicht und wessen
  Bankverbindung einseitig gekündigt werden muss. \n.\nWir geben einen Üb
 erblick was warum bisher passiert ist\, was die Folgen für uns sind\, wie
  wir reagiert haben\, wie es weiter geht und was IHR jetzt tun könnt.\n\n
 Pressemitteilung: https://rote-hilfe.de/meldungen/kontokuendigung-wegen-an
 tifa-banken-vollstrecken-us-politik-deutschland
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/debanking-und-die
 -folgen-fur-die-rote-hilfe-ev
END:VEVENT
BEGIN:VEVENT
SUMMARY:How to thrive in chaos\, Part II
DTSTART:20251227T173000Z
DTEND:20251227T175500Z
DTSTAMP:20260511T211022Z
UID:2c85274f-f5f4-4353-aa66-b2cbf99071a3
CATEGORIES:official
DESCRIPTION:Based on last year's session "How to thrive in Chaos"\, Part I
 I will be about the topics\, data and open questions we did not discuss la
 st time. (https://events.ccc.de/congress/2024/hub/de/event/how-to-thrive-i
 n-chaos-discussion-round-about-chal/)\n\n\n**Last year's announcement text
 :**\n\nADHD is becoming increasingly visible in society and research\, wit
 h many individuals receiving late diagnoses\, especially women with ADHD. 
 While there has been progress at universities\, including the formation of
  student groups for neurodiverse individuals\, there remains a lack of vis
 ibility for neurodiverse researchers. This discussion round aims to provid
 e a safe space for everyone - whether they have an ADHD diagnosis or not -
  to discuss the challenges and benefits of working as a neurodiverse resea
 rcher. You are welcome to share your experiences and strategies to manage 
 the chaos\, but no one will be forced to.\n\nModeration: Sarah\, who recei
 ved her ADHD diagnosis in 2023\, works as a data scientist since May 2024.
  She will share her experiences and strategies as a woman in science with 
 ADHD\, in order to increase the awareness and provide (hopefully) helpful 
 insights.\n\nTarget audience:\n- Neurodiverse individuals (with or without
  a diagnosis)\n- Researchers collaborating with neurodiverse colleagues\n-
  Anyone interested in learning about the needs and challenges of individua
 ls diagnosed with ADHD\n\nOther neurodiverse individuals are also warmly i
 nvited to join the discussion and share their knowledge. However\, due to 
 Sarah's own diagnosis\, she will primarily address ADHD related topics\, a
 s she can only talk about her own experiences
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/how
END:VEVENT
BEGIN:VEVENT
SUMMARY:Präfiguration
DTSTART:20251227T193000Z
DTEND:20251227T202000Z
DTSTAMP:20260511T211022Z
UID:523ee7b2-ce00-446e-8a14-479a982e0eb5
CATEGORIES:official
DESCRIPTION:A session on prefiguration.  \n\nAs a term. \nAs a concept. \n
 As a theory.\nAs a practice.\nAs an attitude. \nAs an emotional mode of li
 fe.\nAs a method. \n\nI will tell you about my current activist-research a
 ctivities and then we can get into discussions about it.\n\nWhat does pref
 iguration mean? A few approaches: \n\n...'a transformative political instr
 ument\, [...]  [which] aims to establish social relationships\, practices 
 and institutions in the here and now that are intended to represent a glim
 pse of the desired society – among other things\, in order to generate m
 otivational effects through exemplarity and to test and practise post-tran
 sformative subjectivity." (Sörensen 2023\, p. 14)\, from Sörensen\, P. (
 2023). Prefiguration: On the political nature of transformative practice. 
 Campus. \n\n...“the deliberative experimental implementation of desired 
 future social relations and practices in the here-and-now” (Raekstad & G
 radin 2020\, p. 10)\, from Raekstad\, P. & Gradin\, S. (2020). Prefigurati
 ve Politics: Building Tomorrow Today. Polity Press. \n\n...‘the concept 
 of prefigurations simply refers to the search for ways of anticipating an 
 egalitarian\, horizontal society [...] a shared existence in solidarity wi
 th living beings without mutual oppression and exploitation’ (Starodub 2
 025\, p. 8)\, from Starodub\, A. (2025). Future Without Borders: History o
 f Ideas and the Present State of Border Demarcation. edition assemblage. \
 n\n...'anarchist organizations generally prefigured the future anarchist s
 ociety in two ways. First\, by embodying the kinds of organizational struc
 ture and methods of deliberation and decision-making that a future society
  would contain. Second\, by performing the kinds of functions that organiz
 ations in a future society will carry out. [...] which was not original or
  exclusive to the anarchist movement.' (Baker 2023\, S. 122-123)\, aus Bak
 er\, Z. (2023). Means and Ends: The Revolutionary Practice of Anarchism in
  Europe and The United States. ak press.\n\nTranslated with DeepL.com (fre
 e version)
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/prafiguration
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marching at KITA (political art - presentation)
DTSTART:20251227T203000Z
DTEND:20251227T205500Z
DTSTAMP:20260511T211022Z
UID:0d3e4059-0c29-42f0-8af4-857e8d927094
CATEGORIES:official
DESCRIPTION:For two years now\, children in the public education system of
  the russian federation are subjected to an unthinkable scale of militaris
 tic indoctrination. Every child takes part in around 70 war-related holida
 ys per year. The more talented ones are involved into propaganda activitie
 s to such degree that they have practically no time to study.\n\nIn this S
 oS we won't like just to point out that millions of children are being mil
 itarized at an unthinkable scale. We also would like to speculate a bit on
  how and why it is possible that many of you still probably do not know ab
 out it.\n\n---\n\nTo draw attention to the above-mentioned topic\, there w
 ill be also a video installation parallel take place at the monument "Krie
 gsklotz” not so far from the CCCH ( https://www.openstreetmap.org/?mlat=
 53.559128&mlon=9.989267&zoom=18 ). The installation will be available duri
 ng 39C3 every night between 18:00 and 22:00. We recommend taking a look at
  this installation too.\n\nSee also: https://chaos.social/@uact/1157933153
 06498503
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/marching-ar-kita-
 political-art-presentation
END:VEVENT
BEGIN:VEVENT
SUMMARY:Red teams in military operations
DTSTART:20251227T210000Z
DTEND:20251227T212500Z
DTSTAMP:20260511T211022Z
UID:395d4535-2a59-4373-8b23-f64c27f87f8a
CATEGORIES:official
DESCRIPTION:Gathering\, orchestrating and dissipating data during specific
  operations.\n\nSpeaker: Anton Tseholnyk\, AFU OSINT team
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/collaboration-wit
 h-red-teams-in-military-operation
END:VEVENT
BEGIN:VEVENT
SUMMARY:🙈 🙉 🙊 Nerd Game Show 😸 😹 😻
DTSTART:20251227T220000Z
DTEND:20251227T225000Z
DTSTAMP:20260511T211022Z
UID:a41e6c1b-a057-4204-af66-856241cff20b
CATEGORIES:official
DESCRIPTION:🙈 🙉 🙊 You Know Stuff ❎ 🆗 ☑️ Answer nerdy que
 stions on your notebook / smartphone and win a (small) price 😸 😹 
 😻\n\nhttps://kahoot.it/
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/nerd-game-show
END:VEVENT
BEGIN:VEVENT
SUMMARY:Filmvorführung "Von Menschen\, die auf Bäume steigen"
DTSTART:20251227T230000Z
DTEND:20251228T002000Z
DTSTAMP:20260511T211022Z
UID:93c7004c-b905-4dab-b353-6305a88687c9
CATEGORIES:official
DESCRIPTION:The film "Of People Who Climb Trees" showcases how activists i
 n Southern Germany and beyond carry out sometimes spectacular protest acti
 ons. The focus is on climate justice\, as well as the consumption of resou
 rces and land.\n\nEveryone is welcome—whether you want to gain insight i
 nto the world of forest occupations\, become more active\, or are simply c
 urious.\n\nAfterwards\, an open discussion with climate activists will tak
 e place.\n\nEnglish subtitles are available.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/filmvorfuhrung-vo
 n-menschen-die-auf-baume-steigen
END:VEVENT
BEGIN:VEVENT
SUMMARY:Lounge Tunes
DTSTART:20251228T003000Z
DTEND:20251228T015000Z
DTSTAMP:20260511T211022Z
UID:b0ee474e-87ad-41b2-8e81-044d7a1c2520
CATEGORIES:official
DESCRIPTION:Listen to some eclectic lounge tunes with your favorite crew.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/lounge-tunes
END:VEVENT
BEGIN:VEVENT
SUMMARY:Trans* Treff
DTSTART:20251228T093000Z
DTEND:20251228T095500Z
DTSTAMP:20260511T211022Z
UID:a448d75a-088a-428e-825e-94f9763d8506
CATEGORIES:official
DESCRIPTION:Meetup for trans and non binary peoples. There is no agenda\, 
 just a chance to meetup other people and maybe Blahajs :3
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/trans-treff
END:VEVENT
BEGIN:VEVENT
SUMMARY:Erfahrungsaustausch zu kommunalem Klimagerechtigkeitsaktivismus
DTSTART:20251228T100000Z
DTEND:20251228T105000Z
DTSTAMP:20260511T211022Z
UID:a5847ebe-abc0-4962-8730-0a79cb60d754
CATEGORIES:official
DESCRIPTION:Wichtige Themen für kommunalen Klimagerechtigkeitsaktivismus 
 sind unter anderem Wärmewende\, Klimabildung und -kommunikation\, Mobilit
 ätswende und Energiewende. Doch wie bekommen wir diese Themen adressiert?
  In dieser Session sollen verschiedene Aktionsformen\, Lehren und Werkzeug
 e vorgestellt und diskutiert werden. Das beinhaltet:\n\n- Bewertung der ei
 genen Kommune bei [Stadt.Land.Klima!](https://www.stadt-land-klima.de/)\n-
  Demonstrationen\n- Dialoge mit der Stadtverwaltung\n- Informationsfreihei
 tsanfragen\n- Offene Briefe an den Stadtrat\n- Kreative Kommunikationsform
 en\n- Mitarbeit in städtischen Beiräten\n- Pressemitteilungen\n- Selbsto
 rganisierte Klimakonferenzen\n- Veröffentlichung von komplexen Dokumenten
 /Plänen/Stellungnahmen\n- Verwaltungsklagen\n- ...\n\nSiehe auch:\n[Verne
 tzung kommunaler Klimagerechtigkeitsgruppen](https://events.ccc.de/congres
 s/2025/hub/en/project/detail/so/vernetzung-kommunaler-klimagerechtigkeitsg
 ruppen)
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/vortrag-und-erfah
 rungsaustausch-zu-kommunalem-klim
END:VEVENT
BEGIN:VEVENT
SUMMARY:Von der Wäscheklammer bis zur Modell-Kuppelklemme einer Seilbahn
DTSTART:20251228T110000Z
DTEND:20251228T112500Z
DTSTAMP:20260511T211022Z
UID:416af645-da83-41b6-8215-705ea35af152
CATEGORIES:official
DESCRIPTION:How does a detachable cable car actually work?\n\nI've been fa
 scinated by these mechanical giants for a long time and have been working 
 on implementing this technology as a working model. I've brought along the
  first prototypes to show you!\n\nIn this short talk\, I'd like to show yo
 u what's needed to clamp onto a cable and how to develop such a detachable
  clamp.\n\nRequired prior knowledge: What a clothespin is
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/von-der-waschekla
 mmer-bis-zur-modell-kuppelklemme-
END:VEVENT
BEGIN:VEVENT
SUMMARY:Build your own Joustmania
DTSTART:20251228T113000Z
DTEND:20251228T115500Z
DTSTAMP:20260511T211022Z
UID:9815a2c8-ff01-4703-8566-b40bb9b80a33
CATEGORIES:official
DESCRIPTION:At several Chaos events\, you can often spot a cheerful group 
 of people playing the game “Joustmania” ( https://github.com/adangert/
 JoustMania ).\n\nIn this game\, each player holds a PlayStation Move contr
 oller that tracks the player’s movement.\nAs soon as a controller accele
 rates too quickly\, the player is eliminated from the game.\nThe competito
 rs therefore try to defeat each other by bumping or nudging the other play
 ers’ controllers\, forcing them to move too fast.\n\nThis year\, I decid
 ed to rebuild the game myself and ran into quite a few obstacles along the
  way: from sourcing the hardware\, to setting up a Raspberry Pi (the game 
 is already about 10 years old)\, all the way to compiling Bluetooth driver
 s. In the end\, this even resulted in my own fork of the project: https://
 github.com/VanFanelia/joustmania-remastered\n\nIn this session\, I would l
 ike to share what I’ve learned\, answer your questions about the game or
  rebuilding it\, and/or organize a few rounds of play.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/build-your-own-jo
 ustmania
END:VEVENT
BEGIN:VEVENT
SUMMARY:Digitale Infrastruktur für Videos und Podcasts: WissKomm Wiki Tal
 k\, Q&A
DTSTART:20251228T120000Z
DTEND:20251228T125000Z
DTSTAMP:20260511T211022Z
UID:59004441-81f9-4677-8083-23cf19b4badc
CATEGORIES:official
DESCRIPTION:“[Who's speaking?](https://media.ccc.de/v/gpn23-213-lanzmini
 ng-wer-spricht-denn-da-)\,” asked arrrrrmin at GPN23. But finding out wh
 o speaks how often on talk shows\, etc.\, takes weeks.\n\nBut why has no o
 ne structured this flood of videos and podcasts yet? Especially now that A
 I slop is permeating all media\, it's becoming increasingly difficult to f
 igure out what's behind what you're hearing.\n\nIf you\, like arrrrrmin\, 
 are looking for answers\, the WissKomm Wiki is for you. The project has be
 en in planning since 2021 and will officially launch in 2026 to make video
 s and podcasts more accessible and understandable for everyone in many wor
 kshops like this one. If you want to know more about videos and podcasts\,
  check out the [video at C3PB](https://c3pb.de/blog/vorstellung-der-idee-d
 es-wisskomm-wikis.html)\, take a look at the [project website](https://bor
 gnetzwerk.org/wisskomm-wiki-2026)\, but most importantly:\n\nCome to the 3
 9C3 talk :)\n\nWe look forward to seeing you!\n\n_The talk will be followe
 d by a [workshop](https://events.ccc.de/congress/2025/hub/de/event/detail/
 digitale-infrastruktur-fur-videos-und-podcasts-wis) the next day\, where w
 e can discuss all questions and ideas in detail \;)_
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/digitale-infrastr
 uktur-fur-videos-und-podcasts
END:VEVENT
BEGIN:VEVENT
SUMMARY:Bio - Hacking - Science
DTSTART:20251228T143000Z
DTEND:20251228T155000Z
DTSTAMP:20260511T211022Z
UID:762c01e3-ceef-499c-b951-1c95cc188c01
CATEGORIES:official
DESCRIPTION:The "Bio - Hacking - Science" assembly is a space for people i
 nterested in the intersection of biological science\, computation\, art\, 
 and their profound ethical and political implications. We are a community 
 of bio nerds\, scientists\, hackers and artists dedicated to bridging the 
 worlds of biology\, hardware\, and hacker culture. Our group serves as a w
 elcoming hub for newcomers\, amateurs\, and experts alike to hang out\, ex
 change knowledge\, and discuss current and future biotechnologies and thei
 r impact on society.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/bio-hacking-scien
 ce
END:VEVENT
BEGIN:VEVENT
SUMMARY:Yes\, even you can harden your systemd services!
DTSTART:20251228T160000Z
DTEND:20251228T165000Z
DTSTAMP:20260511T211022Z
UID:c102d2a8-d3fd-42f2-bb82-48a09e3c85c7
CATEGORIES:official
DESCRIPTION:systemd offers lots of low-effort features for hardening servi
 ces\, but they're only slowly gaining adoption even though they are relati
 vely simple to use. I'd like to introduce the essential options for harden
 ing a systemd service\, taking into account some interesting possibilities
  that arise when at least parts of the system are completely immutable\, s
 uch as on NixOS.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/yes-even-you-can-
 harden-your-systemd-services
END:VEVENT
BEGIN:VEVENT
SUMMARY:We show Quadball🏐🤾🏿‍♀️🏳️‍⚧️: brooms\, a 
 snitch\, six hoop-goals and lots of gender diversity and fun
DTSTART:20251228T170000Z
DTEND:20251228T172500Z
DTSTAMP:20260511T211022Z
UID:f0425c0b-ef72-424b-85bb-ca224de48754
CATEGORIES:official
DESCRIPTION:Quadball combines the best of rugby\, handball\, and dodgeball
  -- let's talk about that!\nIt looks like this -> [https://chaos.social/@s
 axnot/115754026830564736](https://chaos.social/@saxnot/115754026830564736)
 \n\nAgain we will present Quadball (Muggle Quidditch) at congress! Very sm
 all intro to the sport rules followed by casual Q&A.\n\nQuadball champions
  gender diversity with its gender rule:\n"A team may not have more than th
 ree players who identify as the same gender in play at the same time"\ngiv
 ing an edge to nonbinary players.\n\nJendrik and saxnot play in the Brauns
 chweiger Broomicorns\, one of the leading german quadball teams.\n\nFind a
  quadball league near you!\n\n<https://dqbsport.de/>
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/we-show-quadball-
 brooms-a-snitch-six-round-goals-a
END:VEVENT
BEGIN:VEVENT
SUMMARY:Wondrous mathematics: How does artificial intelligence such as Cha
 tGPT accomplish the feat of learning?
DTSTART:20251228T173000Z
DTEND:20251228T182000Z
DTSTAMP:20260511T211022Z
UID:dc849670-02ed-41fe-b3df-3437f75716c1
CATEGORIES:official
DESCRIPTION:Conventional computer algorithms are superior to the human int
 ellect in many regards: for instance at multiplying large numbers or winni
 ng at chess by analyzing huge numbers of moves. But there are also many ta
 sks which come naturally to us yet exceed the capabilities of algorithms b
 y vast amounts: Rigid algorithms can't decipher human handwriting or drive
  cars.\n\nThe recent breakthroughs in artificial intelligence circumvent t
 hese barriers by employing quite a different approach: They use artificial
  neural networks\, which are inspired by the partially-understood way the 
 human brain works.\n\nThe unique feature of artificial neural nets is that
  they aren't rigid\, but can learn. Human programmers specify their rough 
 structure and supply training data\, but don't write a single line of code
  governing their behavior.\n\n**In the spirit of a good Unix command-line 
 tool\, this talk aspires to explain one thing and explain it well: How do 
 artificial neural nets accomplish the feat of learning?**\n\nWe'll learn t
 hat the answer is related to a mathematical breakthrough made at the end o
 f the 17th century and discuss why deep learning only surged in the last f
 ew years\, even though the basics of artificial neural nets were already u
 nderstood in the 1980s. We'll also touch upon some of the greatest problem
 s of neural nets\, which emerge directly from the way neural nets learn.\n
 \nThe talk doesn't require any advanced knowledge of mathematics. If you'r
 e already familiar with Michael Nielsen's book\, then don't expect to lear
 n anything new and come to this talk only if you want to contribute intere
 sting remarks. The talk has the goal of making the other neural network ta
 lks more accessible.\n\n**[Transcript](https://chaos.quasicoherent.io/)**
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/wondrous-mathemat
 ics-how-does-artificial-intellige
END:VEVENT
BEGIN:VEVENT
SUMMARY:Einführung in Waldbesetzungen – Vorstellung der Waldbesetzung i
 m Altdorfer Wald
DTSTART:20251228T183000Z
DTEND:20251228T185500Z
DTSTAMP:20260511T211022Z
UID:561d0dc5-1a45-4a5e-86d1-597a9da18ee6
CATEGORIES:official
DESCRIPTION:Waldbesetzungen entstehen dort\, wo Wälder trotz sich versch
 ärfender Klimakrise weiter abgeholzt werden. Sie sind eine direkte Form\,
  sich der Zerstörung der Profitgier des Kapitalismus in den Weg zu stelle
 n. Gleichzeitig sind sie Utopieschmieden\, an denen Menschen aus unterschi
 edlichen Kontexten zusammenkommen\, um zu erproben\, wie eine solidarische
 \, klimagerechte Zukunft aussehen könnte.\n\nIm Altdorfer Wald (bei Raven
 sburg) leben wir seit Februar 2021. Wir kämpfen gegen die Zerstörung und
  Ausbeutung des Bodens durch einen örtlichen Kiesbaron. Der Kiesabbau erm
 öglicht das Bauen mit klimaschädlichem Beton und das Versiegeln von imme
 r mehr Naturflächen.\nWeitere Infos:\nInstagram: @baumbesetzung.ravensbur
 g\nalti-bleibt.de\n\n🧮
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/einfuhrung-in-wal
 dbesetzungen-vorstellung-der-wald
END:VEVENT
BEGIN:VEVENT
SUMMARY:c3gsm: Ask-us-Anything about the 39c3 cellular network
DTSTART:20251228T190000Z
DTEND:20251228T195000Z
DTSTAMP:20260511T211022Z
UID:cf194c54-396f-46ed-8f1f-907ca8094837
CATEGORIES:official
DESCRIPTION:We like to tell you how the 39c3's cellular network was create
 d and is operated. Including the current tech stack and what changed over 
 the last years.\n\nafterwards there will be a big Q&A session.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/c3gsm-ask-us-anyt
 hing-about-the-39c3-cellular-netw
END:VEVENT
BEGIN:VEVENT
SUMMARY:Speedcoding (JavaScript) 🚀
DTSTART:20251228T200000Z
DTEND:20251228T205000Z
DTSTAMP:20260511T211022Z
UID:3ba0cb08-6b35-4434-9c6b-7492505f397e
CATEGORIES:official
DESCRIPTION:You will be given a series of algorithmic challenges that you 
 have to solve in a certain amount of time. Whether you are an experienced 
 developer or a beginner\, this is a great opportunity to expand your knowl
 edge 💡\n\nTo participate\, you should bring a device with you\, ideally
  a laptop\, so that you can solve the challenges. There is a short tutoria
 l to help you prepare: https://hackmd.io/2zLdA8eOT9-GifslGQZSvw?view
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/speedcoding-javas
 cript
END:VEVENT
BEGIN:VEVENT
SUMMARY:Teilchendetektor im Keller? Ich hab's gemacht! Die Theorie und der
  Bau einer Funkenkammer
DTSTART:20251228T210000Z
DTEND:20251228T212500Z
DTSTAMP:20260511T211022Z
UID:ed994dd7-88c3-454e-b99a-5d63858db442
CATEGORIES:official
DESCRIPTION:Myonen-Detektion mit einer Funkenkammer. Wie funktioniert das 
 eigentlich? \n\nMyonen sind Teilchen\, die Elektronen sehr ähnlich sind\,
  nur deutlich schwerer. Sie entstehen in der kosmischen Hintergrundstrahlu
 ng und treffen ständig auf die Erde. Eine praktische Eigenschaft dieser T
 eilchen ist\, dass sie beim Durchqueren von Materie\, Moleküle ionisieren
 . Auf ihrem Weg hinterlassen sie also Spuren aus freien Elektronen.\n\nIn 
 einer Funkenkammer macht man sich genau diesen Effekt zunutze: Zwischen zw
 ei Elektroden liegt ein starkes elektrisches Feld an. Wenn ein vorbeiflieg
 endes Myon ein Gas ionisiert\, werden die frei gewordenen Elektronen im Fe
 ld beschleunigt und lösen einen sichtbaren Funken aus. So wird die unsich
 tbare Spur des Myons kurzzeitig sichtbar. \n\nWie kann man wissen\, ob das
  detektierte Teilchen ein Myon ist? Welche technischen Herausforderungen g
 ibt es? Wie nützlich ist eine Funkenkammer heutzutage noch? Inwiefern gib
 t es Überschneidungen mit Teilchendetektoren am DESY oder CERN? Das alles
  versuche ich zu beantworten.\n\nBeim 38c3 habe ich bereits einen Vortrag 
 mit dem Titel „Einführung in die Teilchenphysik“ gehalten. Seitdem ha
 be ich viel dazugelernt und freue mich darauf\, dieses Wissen mit euch zu 
 teilen\, mit euch in den Austausch zu gehen und euch auf meinem Weg zur an
 gehenden Teilchenphysikerin mitzunehmen.\n \nDer Vortrag ist für alle Leb
 ewesen gedacht. Egal ob ihr Vorwissen mitbringt oder nicht. \n\nIch freue 
 mich auf euer Kommen!
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/teilchendetektor-
 im-keller-ich-habs-gemacht-die-th
END:VEVENT
BEGIN:VEVENT
SUMMARY:Pwn Basics - Hacking Web Applications for Beginners
DTSTART:20251228T220000Z
DTEND:20251228T232000Z
DTSTAMP:20260511T211022Z
UID:02570181-ffe0-4c60-9af7-60a48b3008bc
CATEGORIES:official
DESCRIPTION:UPDATE: You can download the workshop slides here: https://jan
 osch-braukmann.de/wordpress/wp-content/uploads/2025/12/39C3_Pwn_Basics.pdf
 \n\nThis is a beginners' workshop on web application security. No prerequi
 sites in web application security are required. A certain (web application
 ) development background is beneficial.\n\nFirst\, we will be playing a vi
 rtual escape the room game with challenges on a web application to get int
 o an attacker's mindset.\nThen follows a quick introduction to the OWASP T
 op 10 vulnerabilities (2025 Release Candidate).\nFinally use the gathered 
 knowledge to attack a vulnerable web application (https://github.com/Phylu
 /vulnerable-click-game) and see how these attacks can easily be prevented.
 \n\nPlease bring your (fully charged) laptop to be able to participate.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/pwn-basics-hackin
 g-web-applications-for-beginners
END:VEVENT
BEGIN:VEVENT
SUMMARY:FAFO: How we stopped worrying and bought an Electron Microscope
DTSTART:20251228T233000Z
DTEND:20251229T002000Z
DTSTAMP:20260511T211022Z
UID:df9f13bf-73b8-4e71-9aea-d264745ca285
CATEGORIES:official
DESCRIPTION:We went on Kleinanzeigen and started a non-profit semiconducto
 r lab.\n\nWe created a space to do the kind of research we've always wante
 d\, but couldn't do at our local hackerspaces - either due to space constr
 aints\, or lack of structures allowing for a safe operation of a proper la
 b.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/fafo-how-we-stopp
 ed-worrying-and-bought-an-electro
END:VEVENT
BEGIN:VEVENT
SUMMARY:Demo-LARPs / LARPs als Demo: Spiel\, Spaß\, Verwirrung und klare 
 Kante im Protest
DTSTART:20251229T003000Z
DTEND:20251229T015000Z
DTSTAMP:20260511T211022Z
UID:96095f8e-2a83-4cac-869d-253beef171c6
CATEGORIES:official
DESCRIPTION:We are staging a LARP (live action role play). \n\nWhat can yo
 u expect? \n\nNo rubber swords or black blocs. Instead: \ncamping\, anti-f
 ascism\, raves\, protests and music. Plus: \ncabaret\, theatre\, fun\, imp
 rovised dialogue and scripted interventions. \n\nWe play together and invi
 te you to dance along. All under the theme: \n\nDemonstrations are necessa
 ry\, but we have to change them.\n\nWould you like to contribute to the le
 cture performance? Here is a pad link: \nhttps://pads.ccc.de/c39c3-demo-la
 rp\n\nTranslated with DeepL.com (free version)
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/how-to-antifascis
 t-protest-rave-demo
END:VEVENT
BEGIN:VEVENT
SUMMARY:Wie wir auf den höchsten Kirchturm der Welt stiegen\, um der Kirc
 he beim Klimaschutz auf das Dach zu steigen
DTSTART:20251229T100000Z
DTEND:20251229T105000Z
DTSTAMP:20260511T211022Z
UID:4347a170-1927-44b7-b0da-25b032c80cb0
CATEGORIES:official
DESCRIPTION:Am 2. Juli 2024 kletterten wir unangemeldet auf das Ulmer Mün
 ster und platzierten dort auf einem riesigen Banner die Frage „Wäre Jes
 us Klimaaktivist?“. Viele Kirchengemeinden in ganz Deutschland hängten 
 daraufhin diese Frage selbst an ihre Kirchen und der Theologie-Professor R
 uben Zimmermann schrieb ein Buch über diese theologische Frage.\n\nDie Th
 ese: Jesus hat sich laut Bibel immer für die Menschen eingesetzt\, die we
 nig hatten. Die Klimakrise ist langfristig die größte Bedrohung für vie
 le dieser Menschen. Wir glauben\, Jesus würde sich heute als Aktivist eng
 agieren. So wie er auch schon damals im Tempel Protest gemacht hat\, weil 
 ihm die Kommerzialisierung nicht passte. Darum sollten sich Kirchengemeind
 en aus ihrem Glauben heraus für Klimagerechtigkeit und die Bewahrung der 
 Schöpfung einsetzen.\n\n\n🧮
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/wie-wir-auf-den-h
 ochsten-kirchturm-der-welt-stiege
END:VEVENT
BEGIN:VEVENT
SUMMARY:Repressions and Surveillance of Pro-Palestine Speech in Germany
DTSTART:20251229T110000Z
DTEND:20251229T112500Z
DTSTAMP:20260511T211022Z
UID:9ecdb420-14a8-45b8-9775-9706e1547ce5
CATEGORIES:official
DESCRIPTION:Over the last two years\, Germany has engaged in systematic re
 pression of Pro-Palestine speech within its borders\, including home raids
  for online speech\, border interrogations and device searches\, spurious 
 criminal charges\, and arrests at protests for speech acts - often accompa
 nied by disproportionate use of force.\n\nSocial media monitoring\, as wel
 l as video surveillance of association and expression at protests play an 
 important and ongoing role\, that becomes more problematic with the passag
 e of Berlin's updated policing law providing for longer administrative det
 ention\, geofence warrants\, and the expanded use of facial recognition in
  public spaces.  \n\nIn this talk we briefly summarize events occurring in
  Berlin and Frankfurt over the last two years as they pertain to digital s
 urveillance and repression. Amnesty and Civicus Monitor have spoken out ab
 out Germany's repressions in this area\, and the latter has downgraded its
  rating for Freedom of Expression accordingly.\n\nCome to find out what yo
 u can do to help push back against unconstitutional repressions of speech 
 in Germany\, and the role that NGOs and people with technical skills can p
 lay.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/repressions-and-s
 urveillance-of-pro-palestine-spee
END:VEVENT
BEGIN:VEVENT
SUMMARY:Friedensliteratur und Antikriegsaktivismus - "Die Waffen nieder" (
 1889)"\, "Im Westen nichts Neues (1929)"\, "Runaround (1942)" & HEUTE?
DTSTART:20251229T113000Z
DTEND:20251229T122000Z
DTSTAMP:20260511T211022Z
UID:d3c7f85f-35b3-48af-92e3-4295130eb30b
CATEGORIES:official
DESCRIPTION:In 1889\, peace activist and pioneer of international peace wo
 rk Berta von Suttner published the novel ‘Lay Down Your Arms' in what wa
 s then the Austro-Hungarian Empire. \n\nIn 1929\, Erich Maria Remarque pub
 lished his work ‘All Quiet on the Western Front' in Germany during the W
 eimar Republic. Both remain important works of anti-war literature to this
  day. \n\nIn 1942\, Isaac Asimov wrote in ‘Runaround’ in the fictional
  handbook for robotics:\n\n"1. A robot may not injure a human being or\, t
 hrough inaction\, allow a human being to come to harm.\n2. A robot must ob
 ey the orders given to it by human beings except where such orders would c
 onflict with the First Law.\n3. A robot must protect its own existence as 
 long as such protection does not conflict with the First or Second Law."\n
 \nAre you familiar with any of these works? All of them? Others? What aspe
 cts of them are still relevant today? What can contemporary peace activism
  learn from them? Where is an update needed? What does peace activism look
  like when it incorporates modern machines\, AI and the digital sphere? Wh
 at works and initiatives do you know of that emerged after the Second Worl
 d War and have had an impact on you? \n\nIn this session\, I would like to
  invite you to join me in thinking about how we can stand up for peaceful 
 conflict resolution and work for peace in our various professional discipl
 ines and spheres of life in 2026+ in the face of ongoing warmongering and 
 armament. \n\nWhat does your current peace practice look like? What exampl
 es of successful peace initiatives or anti-war art do you know? What is th
 e current state of the transnational (and digitally connected) peace movem
 ent? And: How do we protect ourselves and others from repression and attac
 ks by divisive forces and warmongers?\n\nFor several years now\, I have be
 en working intensively on the topic of peace and have designed a seminar o
 n this topic this summer\, from which I am happy to contribute preliminary
  work and insights to this session\, if you are interested: https://www.ud
 k-berlin.de/studium/studium-generale/lehrveranstaltungen-des-studium-gener
 ale/archiv-der-lehrveranstaltungen-des-studium-generale/archiv-sommersemes
 ter-2025/seminare-kulturwissenschaft-sose-2025/ peace-art-and-you-on-the-a
 esthetics-didactics-and-pedagogy-of-cultures-of-peace/\n\nLay Down Your Ar
 ms!\n\nTranslated with DeepL.com (free version)
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/die-waffen-nieder
 -im-westen-nichts-neues-runaround
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kein Palantir BW
DTSTART:20251229T123000Z
DTEND:20251229T132000Z
DTSTAMP:20260511T211022Z
UID:b6738b82-4af2-4e01-bc63-6baa7c4faeed
CATEGORIES:official
DESCRIPTION:Wir erzählen euch wie Palantir in Baden-Württemberg Fuß fas
 ste\, wie wir versuchten dagegen vorzugehen und was ihr daraus lernen kön
 nt.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/kein-palantir-bw
END:VEVENT
BEGIN:VEVENT
SUMMARY:Migrantischer Widerstand im Hamburg der 1990er Jahre
DTSTART:20251229T133000Z
DTEND:20251229T145000Z
DTSTAMP:20260511T211022Z
UID:9c68d6a3-979f-4cf2-bb73-3e3554fcdfe0
CATEGORIES:official
DESCRIPTION:tbd
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/anarchismus-heute
END:VEVENT
BEGIN:VEVENT
SUMMARY:Uprising in Belarus revisted 5 years later
DTSTART:20251229T150000Z
DTEND:20251229T152500Z
DTSTAMP:20260511T211022Z
UID:012990f1-24c4-49f7-a45a-eb6e0b374254
CATEGORIES:official
DESCRIPTION:Talk with ABC Belarus\n\nIt’s been 5 years since people in B
 elarus rose up against dictatorship of Alexander Lukashenko and for months
  tried to get rid of authoritarian regime through peaceful demonstrations\
 , direct actions\, strikes and acts of sabotage. The world has changed rad
 ically since that uprising with situation in Belarus becoming even more pr
 ecarious since russia’s full scale invasion of Ukraine.\n\nAt this anniv
 ersary we are going to look into the past\, talk about the reality of resi
 stance against russian empire and what were the chances of success for peo
 ple in Belarus in 2020 knowing all the plans of Putin at this point of his
 tory.\n\nThe presentation expects you to have basic knowledge of political
  situation in Belarus/Russia/Ukraine.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/uprising-in-belar
 us-revisted-5-years-later-0
END:VEVENT
BEGIN:VEVENT
SUMMARY:Situation on anarchist prisoners in Belarus
DTSTART:20251229T153000Z
DTEND:20251229T155500Z
DTSTAMP:20260511T211022Z
UID:250ba0c1-79dd-4061-918c-befcb8150975
CATEGORIES:official
DESCRIPTION:Talk with ABC Belarus\n\nIt’s been 5 years since people in B
 elarus rose up against dictatorship of Alexander Lukashenko and for months
  tried to get rid of authoritarian regime through peaceful demonstrations\
 , direct actions\, strikes and acts of sabotage. The world has changed rad
 ically since that uprising with situation in Belarus becoming even more pr
 ecarious since russia’s full scale invasion of Ukraine.\n\nAt this anniv
 ersary we are going to look into the past\, talk about the reality of resi
 stance against russian empire and what were the chances of success for peo
 ple in Belarus in 2020 knowing all the plans of Putin at this point of his
 tory.\n\nThe presentation expects you to have basic knowledge of political
  situation in Belarus/Russia/Ukraine.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/uprising-in-belar
 us-revisted-5-years-later-2
END:VEVENT
BEGIN:VEVENT
SUMMARY:Super Mario Odyssey(Decomp) — A tale about decompiling and resea
 rch
DTSTART:20251229T160000Z
DTEND:20251229T165000Z
DTSTAMP:20260511T211022Z
UID:429a0a42-bbd4-41b2-929c-754097890115
CATEGORIES:official
DESCRIPTION:An overview of learnings and best-of discoveries as well as im
 pressive projects surrounding the reverse engineering and modding of Super
  Mario Odyssey.\n\nIn more than four years of decompiling the game ([Odyss
 eyDecomp](https://github.com/MonsterDruide1/OdysseyDecomp))\, we have lear
 nt about Nintendo's code practices and mistakes\, some easter-eggs\, and u
 nused content. While a part of the community was busy taking the game apar
 t\, others focused on creating something new - in this talk\, I show our d
 ecomp project along with a live demo of the workflow\, some interesting ea
 ster eggs\, unintended behaviour and interesting concepts in Nintendo's co
 de\, and finally some best-ofs and current state of the modding community.
 \n\nReach out to me after the talk!\nDiscord: @monsterdruide1\nDECT: 5750
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/super-mario-odyss
 eydecomp-a-tale-about-decompiling
END:VEVENT
BEGIN:VEVENT
SUMMARY:All CTFers and PWNers welcome: Pwndbg meetup
DTSTART:20251229T170000Z
DTEND:20251229T172500Z
DTSTAMP:20260511T211022Z
UID:a836ca70-b751-47ae-9d9d-2bc0d51e8fdd
CATEGORIES:official
DESCRIPTION:Meetup for discussing all things regarding the Pwndbg project\
 n(https://pwndbg.re/dev/) and its development\, PWNing\, binary exploitati
 on and reverse engineering!\n\nPwndbg is an open source tool for reverse e
 ngineering\, exploit development and low level debugging which can be used
  with GDB and LLDB.\n\nWe will host a presentation/demo of Pwndbg and its 
 features - also - synchronization with decompiler of your choice (ida/binj
 a/ghidra/angr). We may also talk some stuff about its development process.
  If the time allows\, we will have a Q&A and discussion time.\n\nWe welcom
 e all users\, newcommers\, pwners and CTF players!\n\nOrganized by Disconn
 ect3d & k4lizen
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/all-ctfers-and-pw
 ners-welcome-pwndbg-meetup
END:VEVENT
BEGIN:VEVENT
SUMMARY:Freifunk zum Anfassen und Router zum Mitnehmen
DTSTART:20251229T173000Z
DTEND:20251229T175500Z
DTSTAMP:20260511T211022Z
UID:f9208be6-3cbc-49f2-8293-a4ffb1710849
CATEGORIES:official
DESCRIPTION:Freifunk\, was soll das? Ich soll mein Internet mit anderen te
 ilen\, wozu das denn? Wie geht das überhaupt? Wer braucht heutztage noch 
 WLAN von anderen Leuten wenn doch eh alle Mobilfunkflatrates haben?  \n\nA
 ll diese Fragen und weitere beantworten wir dir und haben sogar direkt noc
 h freifunkfähige Router dabei\, bei denen wir euch gern helfen diese für
  Freifunk einzurichten.  Damit könnt ihr daheim direkt mitmachen.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/freifunk
END:VEVENT
BEGIN:VEVENT
SUMMARY:Antifa-Ost Komplex - What´s with this terrorist organization?
DTSTART:20251229T180000Z
DTEND:20251229T182500Z
DTSTAMP:20260511T211022Z
UID:bbfa4925-b56a-4649-9c49-4a048b021b47
CATEGORIES:official
DESCRIPTION:The number of house searches\, surveillance\, and intimidation
  methods used by Saxon authorities in particular\, such as SOKO Linx\, in 
 recent years is simply immeasurable. \nWe would like to give you an overvi
 ew of the proceedings to date and those currently underway. What investiga
 tive methods does paragraph 129 allows? Who are the Nazis\, anyway? And wh
 y is solidarity important when Trump wants to destroy “Antifa”?
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/repression-gegen-
 antifaschistinnen-im-antifa-ost-u
END:VEVENT
BEGIN:VEVENT
SUMMARY:Where Do All The Leaks Go? OpenAleph Roundtable
DTSTART:20251229T183000Z
DTEND:20251229T192000Z
DTSTAMP:20260511T211022Z
UID:33d920dc-0ffa-485a-89be-e5a5c66a967b
CATEGORIES:official
DESCRIPTION:Abstract: If you work involves sifting through and making sens
 e of large amounts of data\, we welcome you to a session on OpenAleph (ope
 naleph.org)\, where we can brainstorm (and commiserate) together. We will 
 show practical examples of surfacing interesting leads from leaked data an
 d explore falsely-held beliefs that stand in the way of investigators. Mak
 ing sense of a large volume of data is marketed as being a textbook use-ca
 se for generative AI. We beg to differ.\n\nDescription: Making sense of la
 rge amounts of unstructured data makes users reach for prompting a chatbot
 . Newsrooms and organizations we work with hope to “ask questions” in 
 a chat window\, instead of searching through their data. But these same us
 ers rightfully demand accuracy and deterministic results. If they don’t 
 find exactly what they are looking for\, they doubt the efficiency of the 
 entire software stack.\n\nOur experience\, at the Data and Research Center
  (darc.li) with supporting research and investigations with algorithms and
  infrastructure led to insights about how to answer difficult questions in
  a deterministic way.\n\nThis session will walk the audience through sever
 al features that surface names\, companies\, and other interesting data fr
 om large leaks. We will explore conundrums about search and deduplication 
 features\, which pose difficult questions for investigators and programmer
 s.\n\nThere are many falsehoods we tend to believe about our world. What i
 s a name\, actually? What constitutes a country\, and who decides on that?
  How do you search for words across several languages\, all at once? And h
 ow do you reveal hidden links in large volumes of data?\n\nAll these will 
 be answered without prompting a chatbot\, not even once!
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/where-do-all-the-
 leaks-go-openaleph-roundtable
END:VEVENT
BEGIN:VEVENT
SUMMARY:Safety First\, Innovation Last? Überleben als Embedded-Entickler
DTSTART:20251229T193000Z
DTEND:20251229T202000Z
DTSTAMP:20260511T211022Z
UID:0de1bea3-ff4d-4e1b-b562-5066049c54a5
CATEGORIES:official
DESCRIPTION:Zielgruppe:\nEmbedded Entwickler\, Architekten\, System-Ingeni
 eure\, die sich fragen: "Bringt meine Arbeit der Welt noch etwas\, und hab
 e ich morgen noch einen Job?" Besonders für High-End-Entwickler aus Legac
 y-Branchen (Automotive\, Industrie\, Luftfahrt).\n\nFormat:\nOpen-Space & 
 Reverse Mentoring Diskussion (45 Minuten): Ein Austausch in zwei Teilen.\n
 \nDie Große These:\nDein gut bezahlter Legacy-Job ist ein Goldener Käfig
 \, dessen Opportunitätskosten exponentiell steigen. C-Legacy und veraltet
 e Prozesse machen uns zu Low-Hanging-Fruit für die nächste Generation vo
 n Code-Copilots und AI-Automatisierung. Wir müssen uns neu positionieren 
 und unsere Skills "AI-Proofen".\n\nDer Austausch:\nDies ist ein Networking
 -Event für den Ausbruch. Wir suchen den direkten Austausch mit Leuten\, d
 ie die Migration bereits erfolgreich geschafft haben (z. B. von Automotive
  zu MedTech\, Startups\, oder Open Source). Wir diskutieren: Welchen Purpo
 se hat unser Wissen in nachhaltigeren Branchen? Welche Skills (abseits von
  C95) sind jetzt gefragt?\n\nCall to Action:\nKomm\, teile deinen Schmerz 
 und triff diejenigen\, die ihren Karriere-Reset-Knopf schon gedrückt habe
 n.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/der-embedded-migr
 ationspfad-purpose-ai-proofing-di
END:VEVENT
BEGIN:VEVENT
SUMMARY:European Health Data Space (EHDS)
DTSTART:20251229T203000Z
DTEND:20251229T212000Z
DTSTAMP:20260511T211022Z
UID:a2903548-3fde-4c4b-8265-4ce461828684
CATEGORIES:official
DESCRIPTION:We will provide information about the EU regulation on the Eur
 opean Health Data Space (EHDS). The key provisions will come into force in
  2027 and will then apply directly within all EU countries. EHDS says that
  all citizens will receive an electronic health record\, which will be ava
 ilable EU-wide. Separately\, all prescription data for medications will be
  available EU-wide. Access to pseudonymized health data will be permitted 
 for very broadly defined research purposes. Individuals will have several 
 opt-out possibilities available. How is civil society reacting?
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/ehds
END:VEVENT
BEGIN:VEVENT
SUMMARY:Shitty Robot Battle
DTSTART:20251229T213000Z
DTEND:20251229T215500Z
DTSTAMP:20260511T211022Z
UID:f9a5fe48-1609-40c0-a750-57984d0998c3
CATEGORIES:official
DESCRIPTION:Shitty Robot Battle!\n\nPlease register at 39c3@shitty-robots.
 com!\n\nThere ist also a Workshop ( https://events.ccc.de/congress/2025/hu
 b/en/event/detail/shitty-robot-workshop ) but robots that were not build i
 n the workshop are also welcome!\n\nWe also needs volunteers as judges for
  the battle!\n\nParticipants please come at Day 3 on10 p.m. to the shared 
 table 22(Hall H) .\n\nLink to the Lightning talk : Link zum Lightning talk
  : https://media.ccc.de/v/39c3-lightning-talks-tag-3#t=6038
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/shitty-robot-batt
 le
END:VEVENT
BEGIN:VEVENT
SUMMARY:Emergente Systeme\, nachhaltige Konflikte\, Warum unsere IT nicht 
 an Hacks scheitert – sondern an sich selbst
DTSTART:20251229T220000Z
DTEND:20251229T232000Z
DTSTAMP:20260511T211022Z
UID:973409bf-4354-41a0-b41b-19a041bfc724
CATEGORIES:official
DESCRIPTION:Most IT systems fail not because someone makes a mistake.\nThe
 y fail because no one understands the overall behavior.\n\nThis SOS deals 
 with emergent system effects:\nsituations in which correctly built compone
 nts together produce something\nthat no one planned\, modeled\, or control
 led.\n\nUsing real-world examples from IT infrastructure\, cloud dependenc
 ies\, API designs\, AI usage\, update cascades\, and financial and identit
 y systems\, we show\nhow technical decisions can create lasting stress and
  conflict – often without a classic attacker\, without an exploit\, with
 out a clear trigger.\n\nIn line with the 39C3 motto “Power Cycles – Re
 think\, Reboot\, Restart\,” the session asks the question:\n\nWhat do we
  need to rethink before we restart?\nWhat can be rebooted – and what nee
 ds a fundamental rethink?\n\nThe term “sustainable war” is understood 
 not in a military sense\, but in a systemic sense:\n- as a state of perman
 ent repurposing\, \n- overstretching\, and creeping destabilization of IT 
 systems\,\nwhich \n- drives innovation\, \n- undermines resilience\, \n- a
 nd generates social side effects.\n\nEspecially in times of global upheava
 l – geopolitical\, technological\, social –\nautonomy\, dependencies\,
  and resilience must be reevaluated.\nNot as buzzwords\, but as concrete s
 ystem properties.\n\nThe session is aimed at:\n- Administrators\, security
  engineers\, CISOs\n- Architects\, technical decision-makers\n- People fro
 m think tanks\, regulation\, and technology impact assessment
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/emergente-systeme
 -nachhaltige-konflikte-warum-unse
END:VEVENT
BEGIN:VEVENT
SUMMARY:let's play geoguessr!
DTSTART:20251229T233000Z
DTEND:20251229T235500Z
DTSTAMP:20260511T211022Z
UID:97add864-bcbb-4da7-8f75-f8dc6eb5c316
CATEGORIES:official
DESCRIPTION:We have a premium geoguessr subscription and some time\, wanna
  join? \n\nWe can do live challenges with up to 100 players so some team w
 ork may be required but we hope to see you there :3\n\nAll you need to par
 ticipate is a device that can access the internet\, winner(s) will get a (
 small) prize\n\nOtherwise unrelated to .meow besides the organisers\, we j
 ust wanted to do something fun!
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/lets-play-geogues
 sr
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART:20251230T000000Z
DTEND:20251230T012000Z
DTSTAMP:20260511T211022Z
UID:9c5ecc2f-74a0-4a96-be59-a2adc40760b0
CATEGORIES:official
DESCRIPTION:
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/tba
END:VEVENT
BEGIN:VEVENT
SUMMARY:Working With (and Around) Research Infrastructure for Excellent Ci
 tizen Science – Understanding User Stories and Needs
DTSTART:20251230T093000Z
DTEND:20251230T102000Z
DTSTAMP:20260511T211022Z
UID:2ca08785-40e4-4645-a3c1-0ee74eea9bc7
CATEGORIES:official
DESCRIPTION:## Session Description\n\nWe constantly build\, use\, maintain
 \, and adapt physical and digital tools and infrastructures — both insid
 e and outside formal institutions\, and far beyond classical environmental
  citizen science.\n\nThis session invites participants involved in **commu
 nity projects** to share concrete **user stories** about how they actually
  work:\n- what they try to do\,\n- what doesn’t work\,\n- what they avoi
 d using\,\n- what they need\,\n- and why.\n\nRather than presenting soluti
 ons or pitching an infrastructure\, the session focuses on:\n\n### Session
  Focus\n- **Lived practices and workflows**\n- **Shared experiences and bo
 ttlenecks** in maintaining infrastructure\n- **Research activities within 
 communities**\, including success stories\n- **Trust issues and refusals**
  related to infrastructure services\n- **Boundaries around data\, governan
 ce\, and centralisation**\, with concrete project examples\n\n### Method\n
 Participants will fill in short **user stories based on real situations**.
   \nThese stories will be **anonymised** and analysed to identify patterns
  that can inform the **early design of a future research infrastructure (R
 IECS)** — before assumptions harden into technical or governance choices
 .\n\n---\n\n## About the Project\n\n**RIECS-Concept Project** (CORDIS)  \n
 🔗 https://cordis.europa.eu/project/id/101188210/de\n\n### Connect with 
 RIECS-Concept\nFollow us on Mastodon:  \n🔗 https://mastodon.social/@rie
 cs_concept\n\n---\n\n## Get Involved\n\n**Shape the future of Research Inf
 rastructure for Excellent Citizen Science in Europe**\n\n👉 Sign up to b
 e interviewed:  \n🔗 https://forms.gle/uVpB2uL6j8eufdZVA
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/how-research-tool
 s-actually-break-user-stories-fro
END:VEVENT
BEGIN:VEVENT
SUMMARY:Artificial life from random programs
DTSTART:20251230T110000Z
DTEND:20251230T115000Z
DTSTAMP:20260511T211022Z
UID:6660892d-1df3-4b32-ac2b-cbb2e162d353
CATEGORIES:official
DESCRIPTION:Self-replicating programs spontaneously emerge from randomly i
 nitialized code in simple programming languages like Brainfuck\, Forth\, a
 nd assembly\, without any designed replication mechanisms or fitness funct
 ions. Through self-modification and random interactions alone\, these syst
 ems transition from "pre-life" chaos to "life" dynamics where replicators 
 compete\, evolve\, and develop increasingly complex behaviors\, offering n
 ew insights into how life itself might originate on any computational subs
 trate.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/artifitial-life-f
 rom-random-programs
END:VEVENT
BEGIN:VEVENT
SUMMARY:Anarchistischer Antifaschismus\, Queere Präfiguration\, Progressi
 ve Streitkultur & Intersektionale Bündnisse
DTSTART:20251230T120000Z
DTEND:20251230T132000Z
DTSTAMP:20260511T211022Z
UID:b741c8a8-5fbe-4afa-8bac-0ae162c7cd85
CATEGORIES:official
DESCRIPTION:Nachdem die ursprünglich für 14:30 an Tag 3 geplante Session
  dem migrantischen Widerstand umgewidmet wurde\, hier nochmal ein neuer Te
 rmin.\n***\n\nDiese Session wird sich aus den Erfahrungen und Begegnungen 
 der bisherigen 39c3 ChaosTage speisen. Und wird den Versuch unternehmen\, 
 einige begonnene Überlegungen gemeinsam mit euch fortzuführen. Mehr Gesp
 räch als Vortrag. Mehr gemeinsame Suchbewegungen vollführen\, als für a
 lles Antworten zu erwarten. \n\nWir werden um folgende Themen kreisen\, st
 reifen und streicheln:\n\n+ Präfiguration\, ja gerne\, aber wie? Wer mit 
 wem? Und wozu?\n+ Konflikte gehören zum Leben dazu\, bei der Aushandlung 
 von Bedürfnissen\, und darüberhinaus\, das ist nicht immer Friede\, Freu
 de\, Eierkuchen\, aber mit ein bischen üben und Bewusstseinskultur wird d
 as was mit dem konstruktiv Streiten und Konflikte positiv transformieren\n
 + Ist Anarchismus als Begriff heute noch brauchbar? Praktisch\, nicht theo
 retisch.\n+ Wie bekommen wir es hin\, dass beim Antifaschismus alle zusamm
 en gegen den Faschismus arbeiten? #widersetzen\, und intersektional(er) da
 rüberhinaus. \n+ Oder wenn wir es anders nennen\, unser gemeinsames Ziel 
 dabei nicht verloren geht: eine für alle Lebewesen friedvolle\, liebevoll
 e\, achtsame\, freudvolle Welt in der die wechselseitigen Bedürfnisse uns
  die Orientierung für unser Handeln geben (so zumindest 1 Serviervorschla
 g von mir) und die Möglichkeiten und Ressourcen im Blick bleiben\, wie wi
 r das (um-)verteilen was es gibt\, und die Verteidigung gegenüber denjeni
 gen\, die das nicht wollen und uns weiter angreifen werden. \n+ Welche Kom
 petenzen und Reflexionsfähigkeiten fehlen uns aktuell noch\, um belastbar
 e intersektional orientierte (Kampf-)Bündnisse zu schmieden und aufrechtz
 uerhalten?\n+ Und wofür das Ganze? (nochmal ein Ausblick Richtung Utopie?
  We will see...\n\nFreue mich auf bekannte und neue Gesichter und Körper.
  \n\nLassen wir es glitzern und knallen\, mit viel Alerta\, alles Allen un
 d bunten Einhörnern.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/anarchistischer-a
 ntifaschismus-queere-prafiguratio
END:VEVENT
BEGIN:VEVENT
SUMMARY:Firefox Lead Engineer - Ask Me Anything
DTSTART:20251230T133000Z
DTEND:20251230T135500Z
DTSTAMP:20260511T211022Z
UID:74857bc3-9b89-4201-870b-4add6db7d4bd
CATEGORIES:official
DESCRIPTION:Ask anything about Firefox\, I will try to answer every questi
 on\, no matter what it is about\, and I'll try to do so without corporate 
 blah blah.\n\nNo recordings\, please.\n\nDisclaimer: Not an official Mozil
 la event\, blah blah and in reality I'm actually a squirrel.\n\nAbout me: 
 Principal Engineer and have been with Mozilla for almost 15 years.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/firefox-lead-engi
 neer-ask-me-anything
END:VEVENT
BEGIN:VEVENT
SUMMARY:iCoo - A Platform for Activists
DTSTART:20251230T140000Z
DTEND:20251230T142500Z
DTSTAMP:20260511T211022Z
UID:72be6b47-ab8d-4b1c-8d25-4c571ab6f876
CATEGORIES:official
DESCRIPTION:iCoo is a group chat app where affinity groups can create coll
 aborative networks! Get to know the Hat-Picker and start networking with y
 our group!\n\nI'm trying to develop an app for the activist and intentiona
 l communities that is in essence a "Kickstarter\, but for signing up affin
 ity groups\, instead of money.
LOCATION:SoS Stage H
URL:https://events.ccc.de/congress/2025/hub/event/detail/icoo-a-platform-f
 or-activists
END:VEVENT
END:VCALENDAR