BEGIN:VCALENDAR VERSION:2.0 PRODID:-//pretalx//pretalx.riat.at// BEGIN:VTIMEZONE TZID:CET BEGIN:STANDARD DTSTART:20001029T040000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZNAME:CET TZOFFSETFROM:+0200 TZOFFSETTO:+0100 END:STANDARD BEGIN:DAYLIGHT DTSTART:20000326T030000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZNAME:CEST TZOFFSETFROM:+0100 TZOFFSETTO:+0200 END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:pretalx-39c3-Z9FEAG@pretalx.riat.at DTSTART;TZID=CET:20251227T110000 DTEND;TZID=CET:20251227T111000 DESCRIPTION:Welcome and presentation of the CDC. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Intro to the Critical Decentralization Cluster - Diego Salazar URL:https://pretalx.riat.at/39c3/talk/Z9FEAG/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-TJXALG@pretalx.riat.at DTSTART;TZID=CET:20251227T111000 DTEND;TZID=CET:20251227T115000 DESCRIPTION:Electronic hacker badge for the Critical Decentralization Clust er\, featuring the TROPIC01 secure element with an ESP32-S3 microcontrolle r.\n\nMeant to be used for workshops and prototyping. It can also be worn as a mobile badge. Features an e-paper display with frontlight\, a JST con nector for single-cell LiPo batteries and a 12-button keypad.\n\nDesigned with KiCad and released as open-hardware.\n\nhttps://github.com/riatlabs/c dc-badge DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:The CDC Badge: conference badge & devboard with TROPIC01 and ESP32- S3 - dllud\, Pavel Polach\, bobotronic URL:https://pretalx.riat.at/39c3/talk/TJXALG/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-FGHX77@pretalx.riat.at DTSTART;TZID=CET:20251227T120000 DTEND;TZID=CET:20251227T140000 DESCRIPTION:Learn modern OpenPGP with the new RFC 9580 and Sequoia’s sq C LI. In two hours you’ll generate a v6 certificate\, create a revocation cert\, and practice daily ops: encrypt/decrypt\, sign/verify\, and publish via WKD/keyservers. We’ll cover Web-of-Trust basics (link vs vouch\, tr usted introducers\, approvals) and note a GnuPG/v4 compatibility path. Opt ional: quick smart-card demo.\n\nBring: laptop with terminal\, email addre ss\; Sequoia sq preferred. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:OpenPGP 2025: Zero → Hero - darko URL:https://pretalx.riat.at/39c3/talk/FGHX77/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-ZPV3UT@pretalx.riat.at DTSTART;TZID=CET:20251227T140000 DTEND;TZID=CET:20251227T143000 DESCRIPTION:This session looks at where open hardware is heading\, starting from recent ground up developments at FOSSASIA and extending to global tr ends across the open hardware community. With perspectives from FOSSASIA d evelopers and open hardware experts\, it explores decentralised collaborat ion\, open silicon and firmware stacks\, manufacturing realities\, and how openness can be sustained at scale. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:What’s Next with Open Hardware at FOSSASIA and Beyond - Mario Beh ling URL:https://pretalx.riat.at/39c3/talk/ZPV3UT/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-MMHXLC@pretalx.riat.at DTSTART;TZID=CET:20251227T143000 DTEND;TZID=CET:20251227T163000 DESCRIPTION:Build your own open-source Bitcoin signing device with a Raspbe rry Pi Zero\, camera and display! We have kits for 45€ DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:SeedSigner DIY Bitcoin signing device build workshop - freerk URL:https://pretalx.riat.at/39c3/talk/MMHXLC/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-SZWNVV@pretalx.riat.at DTSTART;TZID=CET:20251227T163000 DTEND;TZID=CET:20251227T173000 DESCRIPTION:Free/libre software promotes users' rights\, safeguards privacy \, individual control over technology and fosters autonomy and decentralis ation within our communities. In contrast\, proprietary software limits us er freedoms leading to centralised monopolies that often misuse their powe r to oppress and exploit. This imbalance can result in malware\, degradati on of privacy and service enshitification. Unfortunately\, many remain una ware of the unjustices created by proprietary software\, but increased awa reness and shift towards free software can fuel resistance.\n\nReplacing o f proprietary software is a crucial first step to liberate users\, yet man y need support to make this transition successfully. Workshops for system installation\, repair centres and tech-savvy friends can offer essential a ssistance. However\, what is the most effective way to offer this support? Which software should be recommended and how to engage the novice users w hile minimising the challenges associated with the transition?\n\nIn this workshop we aim to discuss possible strategies of providing information on the path to software freedom. We will examine the installation process an d ongoing use of free software within our circles. Key topics will include sparking interest in free distributions\, selecting ideal software config uration\, and exploring various forms of assistance during installation. A dditionally\, we'll address onboarding into the new system and troubleshoo ting potential issues. Finally\, we hope to gather and share ideas on stre amlining the process for everyone involved. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Software Liberation Toolbox Exchange - Zebra URL:https://pretalx.riat.at/39c3/talk/SZWNVV/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-ENXTHG@pretalx.riat.at DTSTART;TZID=CET:20251227T173000 DTEND;TZID=CET:20251227T180000 DESCRIPTION:The right to respect for digital integrity is an emerging right to protect people's digital lives. \n\nThis talk will introduce this new legal concept\, its possible implications for data protection and how this concept is being introduced in the current legal framework. The talk will also be an update of the implementation work with the adoption of the rig ht in the Constitution of Geneva voted with 94% approval rate on the 18th of June 2023 and with 91% in Neuchâtel in November 2024. Zurich will be v oting in November 2025. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Update 2025. Digital integrity of the human person\, A new fundamen tal right. - Alexis Roussel URL:https://pretalx.riat.at/39c3/talk/ENXTHG/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-BUTR3W@pretalx.riat.at DTSTART;TZID=CET:20251227T182500 DTEND;TZID=CET:20251227T183000 DESCRIPTION:What went on and what is coming next. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Recap and precap of Critical Decentralization Cluster sessions - Di ego Salazar URL:https://pretalx.riat.at/39c3/talk/BUTR3W/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-ZPSSNE@pretalx.riat.at DTSTART;TZID=CET:20251227T183000 DTEND;TZID=CET:20251227T190000 DESCRIPTION:Digital identity is sold as a path to trust\, inclusion\, and " digital empowerment." In practice\, it is a brittle control surface: a set of design choices that decide who is seen\, who is excluded\, and who can be targeted at scale.\n\nBorn from a landmark research project\, _The Dig ital Identity Event Horizon_\, this talk describes the 2025 "mask-off mome nt" for digital identity: the point where multiple comforting narratives c ollapse and the core use of identity systems as population-management infr astructure becomes hard to deny. Using short vignettes from New Design Con gress case-study work (Estonia\, the US\, Australia\, Gaza\, and others)\, it shows how ambiguity\, vendor incentives\, and governance theatre turn identity into fraud-permissive\, coercion-ready infrastructure\n\nIn respo nse to this decline\, this talk concludes proposes a working model of the digital self as a socio-technical system with six properties: serialisatio n\, custodianship\, presentation\, authentication\, authorisation\, and as setisation\, and offers new framing and threat models to help understand h ow digital identity creates brittle societies. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:The Mask-Off Moment for Digital Identity - Cade Diehm URL:https://pretalx.riat.at/39c3/talk/ZPSSNE/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-7EKHXA@pretalx.riat.at DTSTART;TZID=CET:20251227T190000 DTEND;TZID=CET:20251227T193000 DESCRIPTION:This talk will cover Z-Wave (an a bit of Zigbee and Matter) sec urity mechanisms as well as different attack vectors on a Z-Wave network a nd describe how the protocol evolved to mitigate those threats. Many smart homes are still vulnerable to the described attacks. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Breaking into Wireless Smart Homes\, Z-Wave example - PoltoS URL:https://pretalx.riat.at/39c3/talk/7EKHXA/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-39LAUG@pretalx.riat.at DTSTART;TZID=CET:20251227T193000 DTEND;TZID=CET:20251227T200000 DESCRIPTION:Namecoin has been used in the wild for years as a TLS Public Ke y Infrastructure\, and using Tor onion services with TLS has been nearing deployment as well. But what kinds of other PKI wizardry can we do with Na mecoin and Tor? DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Namecoin and Tor PKI 2025 - Jeremy Rand URL:https://pretalx.riat.at/39c3/talk/39LAUG/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-9MBKDN@pretalx.riat.at DTSTART;TZID=CET:20251227T200000 DTEND;TZID=CET:20251227T203000 DESCRIPTION:A walk-through of how to contribute to open source projects\, w ith Stack Wallet\, Monero\, and Tor (Arti!) as examples. A quick guide to setting up development environments for each on Linux\, macOS\, and/or Win dows\, an update on where each project stands\, and a list of big and smal l tasks to do for each. A "quickstart" guide for newcomers and a survey of outstanding TODOs for more experienced hands. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:How to Contribute to Open Source Projects: Stack Wallet\, Monero\, Tor (Arti!) - Joshua Babb URL:https://pretalx.riat.at/39c3/talk/9MBKDN/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-TGC97J@pretalx.riat.at DTSTART;TZID=CET:20251227T203000 DTEND;TZID=CET:20251227T223000 DESCRIPTION:This workshop will introduce mixnet technology as a tool to ach ieve network-level anonymity for internet traffic. We will see hands on ho w a mixnet works\, where the idea came from\, and discuss other strategies for protecting privacy online against state and corporate surveillance. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:"What can a mixnet do? Strategies for network-level anonymity" - Al exis Roussel\, Casey Ford URL:https://pretalx.riat.at/39c3/talk/TGC97J/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-G7X9WM@pretalx.riat.at DTSTART;TZID=CET:20251228T105000 DTEND;TZID=CET:20251228T110000 DESCRIPTION:Welcome and presentation of the CDC. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Intro to the Critical Decentralization Cluster - Diego Salazar URL:https://pretalx.riat.at/39c3/talk/G7X9WM/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-PMUR9B@pretalx.riat.at DTSTART;TZID=CET:20251228T110000 DTEND;TZID=CET:20251228T112000 DESCRIPTION:Introduction to the TROPIC01 Open Source Secure Element and the CDC Badge. Kick-Off of the Workshop series at the Critical Decentralisati on Cluster. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Intro to Tropicsquare TROPIC01 Workshops at CDC - URL:https://pretalx.riat.at/39c3/talk/PMUR9B/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-XF3RKT@pretalx.riat.at DTSTART;TZID=CET:20251228T110000 DTEND;TZID=CET:20251228T130000 DESCRIPTION:Let's program it on the HATs and shields. DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:Programming with the TROPIC01 open architecture secure element - Pa vel Polach URL:https://pretalx.riat.at/39c3/talk/XF3RKT/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-XFRQZQ@pretalx.riat.at DTSTART;TZID=CET:20251228T112000 DTEND;TZID=CET:20251228T122000 DESCRIPTION:Judith de Boer is leading the Alex Pertsev's legal defence team — fighting his "Alex could've thought that his code will be used by cri minals\, but still wrote it — so he's guilty of criminal conspiracy" ver dict from a Dutch court. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Open Legal Q&A with Judith de Boer: "Can I Get Arrested for Writing Code?" - Kirill URL:https://pretalx.riat.at/39c3/talk/XFRQZQ/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-SKBRPH@pretalx.riat.at DTSTART;TZID=CET:20251228T123000 DTEND;TZID=CET:20251228T143000 DESCRIPTION:In this workshop we'll look at how iroh establishes p2p QUIC co nnections. Using holepunching to create direct connections where possible. Then we'll build on top of this by using the gossip protocol to build a g roup chat. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:iroh p2p chat over gossip - Floris Bruynooghe URL:https://pretalx.riat.at/39c3/talk/SKBRPH/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-LK9MK3@pretalx.riat.at DTSTART;TZID=CET:20251228T133000 DTEND;TZID=CET:20251228T140000 DESCRIPTION:Anonymous\, Uncensored\, Sovereign: How DarkFi gives birth to a new Paradigm of Society. DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:The DarkFi super-app - Yuki URL:https://pretalx.riat.at/39c3/talk/LK9MK3/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-JXG9XP@pretalx.riat.at DTSTART;TZID=CET:20251228T143000 DTEND;TZID=CET:20251228T163000 DESCRIPTION:A deep dive into using Embedded I2P to seamlessly anonymize you r applications DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Embedding Anonymity Directly in your Application - idk URL:https://pretalx.riat.at/39c3/talk/JXG9XP/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-8VNVWK@pretalx.riat.at DTSTART;TZID=CET:20251228T160000 DTEND;TZID=CET:20251228T180000 DESCRIPTION:We will program a Z-Wave or a Zigbee device and add it into a Z -Way smart home controller installed on Linux or flashed into an ESP32. DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:Making own Z-Wave (or Zigbee) device from scratch and assemble a Z- Wave (or Zigbee/Matter) controller - PoltoS URL:https://pretalx.riat.at/39c3/talk/8VNVWK/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-SANGLF@pretalx.riat.at DTSTART;TZID=CET:20251228T163000 DTEND;TZID=CET:20251228T173000 DESCRIPTION:Zero-knowledge proofs (ZKPs) are reshaping the landscape of pri vacy\, scalability\, and trust in decentralized systems. In this workshop\ , we’ll explore how ZKPs let one party convince another that a statement is true\, without revealing anything else about it. We aim to demystify t he core ideas behind interactive protocols\, walk through modern ZKP const ructions\, and examine how they’re deployed in cryptocurrencies and mode rn privacy-preserving designs. Participants will leave with a clear unders tanding of how the "prove without revealing" paradigm is shaping blockchai n technology\, verifiable computation\, and the next generation of cryptog raphic standards. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Zero-Knowledge Proofs Workshop - Freeman Slaughter URL:https://pretalx.riat.at/39c3/talk/SANGLF/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-CDSLJX@pretalx.riat.at DTSTART;TZID=CET:20251228T173000 DTEND;TZID=CET:20251228T180000 DESCRIPTION:[Radicle](https://radicle.xyz/) is an open source\, peer-to-pee r code collaboration stack built on Git. Unlike centralized code hosting p latforms\, such as GitHub or GitLab\, there is no single entity controllin g the network. Repositories are replicated across peers in a decentralized manner\, and users retain sovereignty over their data and workflow.\n\n*F ree your code!* DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Radicle: P2P\, Censorship-Resistant Code Collaboration Based on Git - Lorenz Leutgeb URL:https://pretalx.riat.at/39c3/talk/CDSLJX/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-TXTPLK@pretalx.riat.at DTSTART;TZID=CET:20251228T180000 DTEND;TZID=CET:20251228T200000 DESCRIPTION:[Radicle](https://radicle.xyz/) is an open source\, peer-to-pee r code collaboration stack built on Git. Unlike centralized code hosting p latforms\, such as GitHub or GitLab\, there is no single entity controllin g the network. Repositories are replicated across peers in a decentralized manner\, and users retain sovereignty over their data and workflow.\n\n*F ree your code!* DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:Radicle: Setup and Introduction - Lorenz Leutgeb URL:https://pretalx.riat.at/39c3/talk/TXTPLK/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-9ZX9ET@pretalx.riat.at DTSTART;TZID=CET:20251228T180000 DTEND;TZID=CET:20251228T184000 DESCRIPTION:The Bitcoin security budget has profound implications for the l ong term security of Bitcoin and similar proof of work cryptocurrencies. I n this talk we discuss the various types of transaction fee markets for di fferent cryptocurrencies and the possibility of transaction fees replacing falling block rewards to provide security in the future. The results from our analysis of the Monero fee market in particular do pose some very ser ious questions regarding the long term security and viability of cryptocur rencies that do not have a minimum fixed block reward or tail emission. We will discuss these questions and their implications for the possibility o f a worldwide peer-to-peer electronic cash system. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:The Bitcoin Security Budget and Its Implications A Look at the Secu rity\, Scaling and Spam Resistance of Proof of Work Cryptocurrencies - Fra ncisco "ArticMine" Cabañas URL:https://pretalx.riat.at/39c3/talk/9ZX9ET/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-TYKHNF@pretalx.riat.at DTSTART;TZID=CET:20251228T190000 DTEND;TZID=CET:20251228T193000 DESCRIPTION:How is OpenTimestamps used in the real world? We'll explain how it achieves cryptographic timestamping\, and show some read world example s of it in use such as the Guatemalan Presidential Election. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Real World Timestamping With OpenTimestamps - Peter Todd URL:https://pretalx.riat.at/39c3/talk/TYKHNF/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-PH9LYH@pretalx.riat.at DTSTART;TZID=CET:20251228T195500 DTEND;TZID=CET:20251228T200000 DESCRIPTION:What went on and what is coming next. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Recap and precap of Critical Decentralization Cluster sessions - Di ego Salazar URL:https://pretalx.riat.at/39c3/talk/PH9LYH/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-LGLTBV@pretalx.riat.at DTSTART;TZID=CET:20251228T200000 DTEND;TZID=CET:20251228T220000 DESCRIPTION:How do we create a pluralistic yet composable and interoperable ecosystem of decentralized applications?\n\nIntroduction to the fantastic world of P2P μVMs and discussion about making them a reality. DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:P2P μVMs: pluralistic composability & interoperability for decentr alized networks & applications - tg-x URL:https://pretalx.riat.at/39c3/talk/LGLTBV/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-7TDXST@pretalx.riat.at DTSTART;TZID=CET:20251228T200000 DTEND;TZID=CET:20251228T203000 DESCRIPTION:Passkeys are the new hype for easy onboarding\, but it's a quit e old protocol that has been hijacked for crypto purposes. We'll dig throu gh the standard history\, the potentially misleading security expectations \, and see how to reverse engineer an implementation to validate its sound ness\n\nThis is a rebroadcast of my devcon 7 presentation (https://archive .devcon.org/devcon-7/passkeys-the-good-the-bad-the-ugly/?tab=YouTube) \nwi th some additional details on modern ETH wallets implementations DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Passkeys : the good\, the bad\, the ugly - btchip URL:https://pretalx.riat.at/39c3/talk/7TDXST/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-TRJTLG@pretalx.riat.at DTSTART;TZID=CET:20251228T203000 DTEND;TZID=CET:20251228T210000 DESCRIPTION:Augustin Bielefeld\, principal engineer at Eilbek Research\, ha s been growing mycelium and other micro-organisms since 2023\, and will pr esent his journey building a reproducible and affordable bioreactor\, whic h is destined to be open-sourced.\n\nThis talk is aimed at people with an interest in mycology/microbiology but the principles demonstrated are acce ssible to everyone. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:DIY Bioreactors for mycology and biohacking - Augustin Bielefeld URL:https://pretalx.riat.at/39c3/talk/TRJTLG/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-YRYKY3@pretalx.riat.at DTSTART;TZID=CET:20251228T210000 DTEND;TZID=CET:20251228T213000 DESCRIPTION:this talk will present the story behind the "referendum citoyen " app\, the ZK tech built by Rarimo team\, but also how social movements a re embracing cypherpunk tools to engage into challenging the structure of power in a country such France. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:"Referendum Citoyen" the revolutionnary app - Alexis Roussel URL:https://pretalx.riat.at/39c3/talk/YRYKY3/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-JENEDU@pretalx.riat.at DTSTART;TZID=CET:20251228T220000 DTEND;TZID=CET:20251228T224500 DESCRIPTION:Introduction to miniscript with Liana for secure Bitcoin self-c ustody using hardware wallets and recovery paths. DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:New features in Bitcoin self-custody - Polto\, Darko URL:https://pretalx.riat.at/39c3/talk/JENEDU/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-DCJXBV@pretalx.riat.at DTSTART;TZID=CET:20251228T220000 DTEND;TZID=CET:20251228T223000 DESCRIPTION:In this talk\, I will cover how XMPP manages metadata\, what is technically required for which reason\, what could be avoided and with wh ich drawbacks\, and do some comparisons with centralized (e.g. signal)\, o ther decentralized (e.g. matrix) and other systems trying to solve the sam e issue. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:XMPP and metadata - mathieui URL:https://pretalx.riat.at/39c3/talk/DCJXBV/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-PLYJF8@pretalx.riat.at DTSTART;TZID=CET:20251228T223000 DTEND;TZID=CET:20251229T023000 DESCRIPTION:Boot software like BIOS or UEFI are usually nonfree. They still run after the operating system is booted and often contain restrictions ( like refusing to boot when the WiFi card is replaced) and are usually rela ted to technologies of control like the Management engine or similar.\n\nO n computers with a Management engine\, replacing the nonfree BIOS with GNU Boot also removes the Management Engine operating system.\n\nThe install party will take place in a room at the GNU Boot assembly location and the maintainers will be available to help you install GNU Boot on a supported computer (see https://www.gnu.org/software/gnuboot/status.html for a list) . DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:GNU Boot install party - neox\, GNUtoo URL:https://pretalx.riat.at/39c3/talk/PLYJF8/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-WMMFFF@pretalx.riat.at DTSTART;TZID=CET:20251229T102500 DTEND;TZID=CET:20251229T103000 DESCRIPTION:What went on and what is coming next. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Welcome to CDC day 3 - Diego Salazar URL:https://pretalx.riat.at/39c3/talk/WMMFFF/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-RPPFJF@pretalx.riat.at DTSTART;TZID=CET:20251229T103000 DTEND;TZID=CET:20251229T123000 DESCRIPTION:In this self-paced workshop we will learn how to use the instru ments of the Pocket Science Lab (PSLab) board\, with the Python API and th e Android app. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Getting started with the Pocket Science Lab - Alexander Bessman URL:https://pretalx.riat.at/39c3/talk/RPPFJF/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-7CVRJN@pretalx.riat.at DTSTART;TZID=CET:20251229T110000 DTEND;TZID=CET:20251229T140000 DESCRIPTION:We will program a Z-Wave or a Zigbee device and add it into a Z -Way smart home controller installed on Linux or flashed into an ESP32. DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:Making own Z-Wave (or Zigbee) device from scratch and assemble a Z- Wave (or Zigbee/Matter) controller - PoltoS URL:https://pretalx.riat.at/39c3/talk/7CVRJN/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-3MUCCG@pretalx.riat.at DTSTART;TZID=CET:20251229T130000 DTEND;TZID=CET:20251229T131500 DESCRIPTION:We meet indoors at CDC Circle and go outside to launch some com ms infrastructure on a tethered balloon. \n\n\n\nAs every Star Trek fan kn ows\, humans are "ugly bags of mostly water" [S1E18] so RF communication i n areas densely packed with humans - or their infrastructure made of metal and stone - is problematic. \nWe'll explore ideas to overcome or mitigat e this problem\, ideas that are possible due to miniaturisation of RF devi ces and their constraints. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:(Outdoor) Ballooning with antennas - chris URL:https://pretalx.riat.at/39c3/talk/3MUCCG/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-9LHGTD@pretalx.riat.at DTSTART;TZID=CET:20251229T131500 DTEND;TZID=CET:20251229T133000 DESCRIPTION:Come hear about how decentralization is used and viewed in comm ercial projects\, and how you can make a difference in real-world adoption . DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:State of the Decentralization in Industry - Diego Salazar URL:https://pretalx.riat.at/39c3/talk/9LHGTD/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-UKSKJF@pretalx.riat.at DTSTART;TZID=CET:20251229T133000 DTEND;TZID=CET:20251229T140000 DESCRIPTION:Electronic conference badge & devboard by the Critical Decentra lization Cluster with:\n • TROPIC01 secure element\n • ESP32-S3 microcontroller\n • e-paper display with frontlight\n • battery charging IC and LiPo battery\n • 12-button keypad\n • Lots of IO : RasPi header\, Grove\, SAO\n\nhttps://github.com/riatlabs/cdc-badge DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:The CDC Badge: conference badge & devboard with TROPIC01 and ESP32- S3 - dllud\, bobotronic URL:https://pretalx.riat.at/39c3/talk/UKSKJF/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-CDCVQT@pretalx.riat.at DTSTART;TZID=CET:20251229T140000 DTEND;TZID=CET:20251229T150000 DESCRIPTION:Real-world industry cryptographers and developers working on op en-source projects\, codebases\, and research sit down to listen and answe r your questions about how they got started\, what they're doing\, and how they make a difference. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Talk with Industry Cryptographers and Developers - Diego Salazar URL:https://pretalx.riat.at/39c3/talk/CDCVQT/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-XTWLFN@pretalx.riat.at DTSTART;TZID=CET:20251229T140000 DTEND;TZID=CET:20251229T160000 DESCRIPTION:Let's program it on the badge. DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:Programming with the TROPIC01 open architecture secure element - Pa vel Polach URL:https://pretalx.riat.at/39c3/talk/XTWLFN/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-UWJ8XB@pretalx.riat.at DTSTART;TZID=CET:20251229T150000 DTEND;TZID=CET:20251229T153000 DESCRIPTION:Personal data leaks can happen to the best of us. A unique deve lopment in machine learning gives us the opportunity to catch lapses befor e they're passed on for the world to see. This talk covers how Occlumask w orks and its developments so far. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Leveraging LLMs for Preventing De-anonymization: Occlumask - Alice Margatroid URL:https://pretalx.riat.at/39c3/talk/UWJ8XB/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-MWLGQW@pretalx.riat.at DTSTART;TZID=CET:20251229T153000 DTEND;TZID=CET:20251229T173000 DESCRIPTION:Come and experience Occlumask in action! We want to make sure O cclumask can stand up to whatever situations you might find yourself in. E nter your own text and see if Occlumask can tell whether you're doxing you rself\, and suggest what kinds of information Occlumask should be able to detect and notify you of. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Occlumask Demo & Brainstorming Session - Jeremy Rand\, Alice Margat roid URL:https://pretalx.riat.at/39c3/talk/MWLGQW/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-YPX33R@pretalx.riat.at DTSTART;TZID=CET:20251229T160000 DTEND;TZID=CET:20251229T180000 DESCRIPTION:Let's build mesh radios from scratch.\nWe will bring 20 PCB kit s\, containing all parts. Soldering is difficult but doable in the Congres s. You have to be very proficient with soldering to get this done during C ongress\, but the Eternal Soldering Workshop is open and nearby.\nWe also have solder paste and stencils for the real pros!\nIf you don't want to ge t into soldering now\, you can take one of the kits home. During the works hop you will get to know everything necessary to get the job done. DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:Mesh Radio Workshop - Jitter URL:https://pretalx.riat.at/39c3/talk/YPX33R/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-AEQPXC@pretalx.riat.at DTSTART;TZID=CET:20251229T173000 DTEND;TZID=CET:20251229T180000 DESCRIPTION:When building privacy-sensitive applications\, we often rely on proxies like Tor to ensure that no direct connections escape the intended anonymity network. However\, verifying that every part of an application reliably goes through the proxy is surprisingly difficult. Even a single s yscall escaping the proxy path can quietly deanonymize a user.\n\nSocksTra ce is a lightweight proxy-leak detection tool that traces network-related syscalls and validates whether they correctly route through the configured proxy.\n\nIn this talk\, I’ll show how SocksTrace works under the hood\ , what kinds of leaks it can catch\, and why syscall-level inspection is e ssential for high-assurance privacy tools. I’ll also walk through real-w orld findings: during our testing\, we identified previously unknown proxy leaks in major browsers including Firefox and Brave\, one of which result ed in a confirmed bug bounty. These results highlight how subtle proxy rou ting mistakes can occur even in widely-used\, privacy-oriented software. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:SocksTrace: Preventing Proxy Leaks in Your Applications - Robert Mi ndo URL:https://pretalx.riat.at/39c3/talk/AEQPXC/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-VG7YRC@pretalx.riat.at DTSTART;TZID=CET:20251229T180000 DTEND;TZID=CET:20251229T183000 DESCRIPTION:qaul is a P2P mesh communication app\, with a strong focus on p rivacy and usability. Every user is identified via their self-sovereign cr yptographic identity.\n\nIt not only communicates P2P\, but builds a mesh network\, interconnecting multiple communication such as BLE (Bluetooth Lo w Energy)\, Local Area Networks\, and Internet overlay links.\n\nThe messa ging app has an automated user discovery\, end-to-end encrypted direct mes saging and group chats for text\, voice-messages and files\, as well as pu blic communication channels.\n\nhttps://qaul.net DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:qaul - Decentralized Off-the-Grid Mesh Communication App - Mathias Jud URL:https://pretalx.riat.at/39c3/talk/VG7YRC/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-8UK8XJ@pretalx.riat.at DTSTART;TZID=CET:20251229T180000 DTEND;TZID=CET:20251229T200000 DESCRIPTION:Join us for a practical session on auditing network traffic. In this workshop\, you will learn how to use SocksTrace to intercept\, analy ze\, and socksify applications. DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:A hands-on guide for people who want to install and use Sockstrace. - Robert Mindo URL:https://pretalx.riat.at/39c3/talk/8UK8XJ/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-DVEGM7@pretalx.riat.at DTSTART;TZID=CET:20251229T183000 DTEND;TZID=CET:20251229T190000 DESCRIPTION:The Internet is decentralized by design. It came into being not at once\, but in parts.  New protocols were added on top of previous o nes\, with each new protocol extending and improving functionality of the global network. However one essential protocol is still missing  —  an open way to discover and publish content on the global web. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Decentralized Syndication — The Missing Internet Protocol - T autvilas Mečinskas URL:https://pretalx.riat.at/39c3/talk/DVEGM7/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-ZKYJ8N@pretalx.riat.at DTSTART;TZID=CET:20251229T190000 DTEND;TZID=CET:20251229T193000 DESCRIPTION:We walk from ancient Roman times to modern day\, discussing the general advancement of applied cryptography across history. We begin with the Caesar cipher\, fast forward to the World Wars of the early 20th cent ury\, before moving onto the rise and fall of elliptic curve cryptography\ , including Monero's past\, present\, and future protocol design philosoph y. This talk is informal\, intended as a primer for the historically-minde d. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:A Brief History of Keeping Secrets - Brandon Goodell URL:https://pretalx.riat.at/39c3/talk/ZKYJ8N/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-AGLZXP@pretalx.riat.at DTSTART;TZID=CET:20251229T193000 DTEND;TZID=CET:20251229T203000 DESCRIPTION:Quantum computers represent a looming threat to much of the cri tical foundations of modern cryptography. Post-quantum cryptography (PQC) utilizes hard mathematical problems that we believe resist the so-called " quantum advantage\," to preserve security and privacy. In this workshop we will unpack the principles behind the leading PQC families such as lattic e and code based constructions\, then showcase their implications for cryp tocurrencies\, digital signatures\, and zero-knowledge protocols. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Pre-Quantum to Post-Quantum Cryptography - Freeman Slaughter URL:https://pretalx.riat.at/39c3/talk/AGLZXP/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-YSX8LU@pretalx.riat.at DTSTART;TZID=CET:20251229T200000 DTEND;TZID=CET:20251229T220000 DESCRIPTION:Introduction into chip flasher device history and operation - g et trained! DTSTAMP:20260422T204559Z LOCATION:CDC Circle SUMMARY:Zerocat Chipflasher - Zerocat URL:https://pretalx.riat.at/39c3/talk/YSX8LU/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-ZGADCJ@pretalx.riat.at DTSTART;TZID=CET:20251229T203000 DTEND;TZID=CET:20251229T210000 DESCRIPTION:[be-BOP](https://be-bop.io/) is free and open-source software f or **autonomous commerce**. It’s an all-in-one\, batteries-included solu tion built for merchants\, not engineers. It lets communities run markets without accounts\, tracking\, or gatekeepers. From shops to restaurants\, ticketing to peer-funding — all self-hosted. Adoption grows among mercha nts and creators seeking real independence.\n\nNext steps: **multitenant** for specialization\, **cross be-BOP** for **federation**. We’re buildin g the foundations of a free\, federated economy. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:be-BOP: Ethical Commerce\, Without the Middlemen - Roos URL:https://pretalx.riat.at/39c3/talk/ZGADCJ/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-XPN8AE@pretalx.riat.at DTSTART;TZID=CET:20251229T210000 DTEND;TZID=CET:20251229T213000 DESCRIPTION:Proprietary tech from corporations and surveillance from govern ments never been more pervasive and it's becoming impossible to deflect it 's patterns of control. Refuse the captured system and opt out into the pa rallel one\, embracing FOSS\, decentralization and freedom. Let's explore technologies we can use as an actual tools without serving third parties\, building independent community coordination and distributed systems that cannot be controlled. Join us to share your stack and tips on surviving wi thout proprietary technologies\, banks and big brothers as an individual a nd a hackerspace. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Applying cryptoanarchy in individual and communal sovereignty - Mar io URL:https://pretalx.riat.at/39c3/talk/XPN8AE/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-WWSYUL@pretalx.riat.at DTSTART;TZID=CET:20251229T213000 DTEND;TZID=CET:20251229T230000 DESCRIPTION:A collaborative dialogue to examine and unsettle the philosophi cal foundations of decentralization. What do we actually mean when we spea k of decentralization\, and what forms of order\, asymmetry or coordinatio n quietly sustain it? Where does decentralization end and centralization b egin\, and is this opposition as clear as it appears? Beyond familiar bina ries such as order and chaos\, what assumptions are embedded in the formal systems\, protocols and narratives we rely on? What do participants exper ience when engaging with institutions\, infrastructures or rulesets\, and what recedes into the background as those systems operate? Through a self- reflective and performative inquiry\, this dialogue explores decentralizat ion not as a moral absolute but as a situated and contested design space s haped as much by what it excludes as by what it enables. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:On the Limits of Decentralization - Ome URL:https://pretalx.riat.at/39c3/talk/WWSYUL/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-XPKCMD@pretalx.riat.at DTSTART;TZID=CET:20251230T102500 DTEND;TZID=CET:20251230T103000 DESCRIPTION:What went on and what is coming next. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Welcome to the last CDC day - Diego Salazar URL:https://pretalx.riat.at/39c3/talk/XPKCMD/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-QTQHYH@pretalx.riat.at DTSTART;TZID=CET:20251230T103000 DTEND;TZID=CET:20251230T104500 DESCRIPTION:[NextGraph](https://nextgraph.org/) is a framework aimed at mak ing live collaboration\, offline support\, end to end encryption\, and app lication interoperability easy.\n\nIn this demo\, I will walk you through the basics of NextGraph and our new TypeScript SDK.\n\nThe new TypeScript SDK turns RDF graph database records into ordinary\, typed objects with in stant two‑way binding. By proxying those objects and emitting signals\, the SDK provides a framework‑agnostic reactive layer that integrates cle anly with React\, Vue\, and Svelte.\n\n**You will** get a short introducti on to NextGraph\, RDF (a graph data format designed for interoperability)\ , and a live demo walking through a simple property change\, showing how a mutation is instantly persisted to the database\, syncronized\, and refle cted in UI components across React\, Vue\, and Svelte. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:NextGraph Demo: Local First\, E2EE\, RDF graph DB\, and a Reactive ORM SDK - Laurin Weger URL:https://pretalx.riat.at/39c3/talk/QTQHYH/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-UZPXRN@pretalx.riat.at DTSTART;TZID=CET:20251230T104500 DTEND;TZID=CET:20251230T124500 DESCRIPTION:Build your own open-source Bitcoin signing device with a Raspbe rry Pi Zero\, camera and display! We have kits for 45€ DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:SeedSigner DIY Bitcoin signing device build workshop - freerk URL:https://pretalx.riat.at/39c3/talk/UZPXRN/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-LZWMFU@pretalx.riat.at DTSTART;TZID=CET:20251230T130000 DTEND;TZID=CET:20251230T133000 DESCRIPTION:We will give a brief introduction to the Reticulum Network Stac k and announce what is new in 2025:\n\n- Reticulum will soon be available in Rust\, which will allow users of embedded systems a better performance. \n\n- The new Reticulum BLE Interface enables the creation of autonomous mesh networks without any further hardware or central server. The interfac e can be used on Linux and Android. \n\n- The Columba App for Reticulum lo wers the barrier of entry for using Reticulum. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Whats new in Reticulum - fluorescent_beige\, Liam URL:https://pretalx.riat.at/39c3/talk/LZWMFU/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-9HTCKF@pretalx.riat.at DTSTART;TZID=CET:20251230T133000 DTEND;TZID=CET:20251230T140000 DESCRIPTION:What would it look like to build financial infrastructure for s olidarity rather than speculation? While blockchain technology has largely been captured by libertarian and extractive market logic\, it certainly d oes not need to be that way.\n\nIn this talk\, we'll explore Solidarity Pr imitives\, development and architectural design patterns designed to forge economic solidarity between individuals and collectives. Drawing from our work at Bread Cooperative and research I've documented through my podcast \, The Blockchain Socialist\, we'll examine concrete examples like the BRE AD community token\, savings circles implementation\, and the Solidarity F und mechanisms that enable participatory funding without relying on ventur e capital or traditional financial intermediaries.\n\nWe'll discuss how th ese primitives address a critical gap: the technical and coordination barr iers that have historically made alternative economic models difficult to implement at scale. From worker cooperatives to mutual aid networks\, the infrastructure simply hasn't existed. Peer-to-peer technologies can change that but only if designed with solidarity\, not profit maximization\, as the core principle.\n\nThis talk is for anyone interested in the practical dimensions of building a post-capitalist economy: what does it actually l ook like to write code for collective autonomy? How do we ensure decentral ized systems serve communities rather than concentrating power? DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Solidarity Finance on P2P Rails - Joshua Davila URL:https://pretalx.riat.at/39c3/talk/9HTCKF/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-NBWHGM@pretalx.riat.at DTSTART;TZID=CET:20251230T140000 DTEND;TZID=CET:20251230T143000 DESCRIPTION:Online anonymity is being demonized and undermined. But anonymi ty has an important social function for preserving individuals and group a gainst social threats. We will argue for the philosophical and political v alue of being anonymous\, especially against the rising state of capture i n state and corporate surveillance. Anonymity is more than namelessness: i t's a tool of resistance. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Who's afraid of anonymity? A philosophical and political toolkit - Casey Ford URL:https://pretalx.riat.at/39c3/talk/NBWHGM/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-V9CPMV@pretalx.riat.at DTSTART;TZID=CET:20251230T143000 DTEND;TZID=CET:20251230T150000 DESCRIPTION:Mutual-vend.com - smallest self contained coop decentrally owne d and operated infra DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Mutual Vend - decentralized coop vending machine - Ron Turetzky URL:https://pretalx.riat.at/39c3/talk/V9CPMV/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-ZJBBSC@pretalx.riat.at DTSTART;TZID=CET:20251230T150000 DTEND;TZID=CET:20251230T153000 DESCRIPTION:Looking at how decentralized social networks\, AI\, XR\, blockc hain\, and other technologies come together to shape the next stages of we b evolution. DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Building the next web - Ryta URL:https://pretalx.riat.at/39c3/talk/ZJBBSC/ END:VEVENT BEGIN:VEVENT UID:pretalx-39c3-9KZ3CB@pretalx.riat.at DTSTART;TZID=CET:20251230T153000 DTEND;TZID=CET:20251230T160000 DESCRIPTION:++\n++\n++\n++\n++\n++\n++\n++\n\n\nThe closing presentation at the Critical Decentralization Cluster assembly during 39C3 is a progress report on Offworld Voyage\, a Space Analog Research project dedicated to t he design of environmentally sustainable interplanetary exploration traini ng habitats that also solve for adaptation to climate biodevastation on Ea rth. \n\nThe talk will focus on some of the various ways in which Free/Lib re Open Source technologies are incorporated into the project - with a str ong focus on the development of decentralized and distributed coordination systems for autonomous and collective action - and how creative technolog ists can plug in and participate in the project. \n\nAs a special show-and -tell treat Scott Beibin and Elizabeth Jane Cole\, founders of Offworld Vo yage will display the new pressurized training spacesuit prototypes they r ecently commissioned Smith Exploration Garments to build for the project.\ n\nSee you there! DTSTAMP:20260422T204559Z LOCATION:CDC Triangle SUMMARY:Offworld Voyage @ 39c3: Astronaut Collectives Are Beautiful (A prog ress report) - Scott Beibin\, Elizabeth Jane Cole URL:https://pretalx.riat.at/39c3/talk/9KZ3CB/ END:VEVENT END:VCALENDAR