WHY2025

Version 1.0 - Sputnik July 30, 2025

We released a new schedule version!

We have a new session: “Building Inclusive Quantum Communities” by Nina Hefele, Florence Mooser, Jay Jayesingha.

We sadly had to cancel a session: “Lightning Talks”

We had to move some sessions, so if you were planning on seeing them, check their new dates or locations:

“A Guided Tour to UNIX Shells” by Stephan Hohmann (Aug. 10, 2025, 6 p.m. → Aug. 10, 2025, 7 p.m.)
“GNU Taler: beyond digital money” by Iván Ávalos (Aug. 10, 2025, 8 p.m. → Aug. 10, 2025, 9 p.m.)
“23 Years of Security Advisories: Past, Present, and Future at the Dutch NCSC” by Jacco Ligthart (Aug. 9, 2025, 9 p.m. → Aug. 9, 2025, 10 p.m.)
“Horus Scenario 2.0” by Willem Westerhof (Aug. 9, 2025, 4 p.m. → Aug. 9, 2025, 3:35 p.m.)
“Caveat Emptor: Ratings and Reviews Can't Be Trusted” by mark seiden (Aug. 11, 2025, 6 p.m. → Aug. 11, 2025, 7 p.m.)
“Lockpicking in CTFs” by Thijs Bosschert (Aug. 10, 2025, 9 p.m. → Aug. 10, 2025, 10:10 p.m.)
“How to build and launch a high-altitude balloon project” by Aleksander Parachniewicz (Aug. 9, 2025, 2 p.m. → Aug. 9, 2025, 12:35 p.m.)
“Securing AI requires life cycle thinking and reducing unintended consequences” by Satu Korhonen (Aug. 10, 2025, 1 p.m. → Aug. 10, 2025, noon)
“GHP1989 to WHY2025: Dutch hacker camps from the past and the future” by Boekenwuurm, -, Nancy Beers (Aug. 11, 2025, 1 p.m. → Aug. 11, 2025, noon)
“Getting Started: Reading Bosch Sensor Data on the Badge with MicroPython” by Harald Koenig (Aug. 11, 2025, 8 p.m. → Aug. 11, 2025, 9 p.m.)
“Elephants, ants and introduction to topology” by Aleksandra Fedorova (Aug. 9, 2025, 1 p.m. → Aug. 9, 2025, 2:35 p.m.)
“Hacker Jeopardy - Final” by Eloy (Aug. 10, 2025, 8 p.m. → Aug. 10, 2025, 9 p.m.)
“All about BadgeHub” by Francis Duvivier (Aug. 9, 2025, 7 p.m. → Aug. 9, 2025, 8 p.m.)
“Hacker Jeopardy - Round 2” by Eloy (Aug. 9, 2025, 8 p.m. → Aug. 9, 2025, 9 p.m.)
“Building a Robot Visor: How and Why” by Δ-44203 (Aug. 9, 2025, 1:30 p.m. → Aug. 9, 2025, 2 p.m.)
“Embrace Chaos! How Game Randomizers Work” by Nikki (Aug. 10, 2025, 4 p.m. → Aug. 10, 2025, 4:10 p.m.)
“How to rig elections” by Vadim Makarov (Aug. 9, 2025, 6 p.m. → Aug. 9, 2025, 9 p.m.)
“The story and maths behind the Sferical lamps” by R3GB (ReggieB) (Aug. 11, 2025, 5:30 p.m. → Aug. 11, 2025, 5:35 p.m.)
“Shenanigans with Web of Things” by Christian Paul (Aug. 9, 2025, 8 p.m. → Aug. 9, 2025, 9 p.m.)
“Creating mate ice-tea” by iron (Aug. 9, 2025, 3 p.m. → Aug. 9, 2025, 3:10 p.m.)
“CyberSecurity Rant - a safe space to talk about what annoys you in cybersecurity” by Kseniia Ignatovych, Nicolas, Marina Bochenkova (Aug. 10, 2025, 8 p.m. → Aug. 10, 2025, 9 p.m.)
“Race conditions, transactions and free parking” by Benjamin W. Broersma (Aug. 10, 2025, 3:30 p.m. → Aug. 10, 2025, 3:35 p.m.)
“Reverse-Engineering Government Transparency” by Quinten Coret (Aug. 9, 2025, 9 p.m. → Aug. 9, 2025, 10 p.m.)
“Who Gave the Toaster Root Access to the Physical World?” by Piet De Vaere (Aug. 10, 2025, 8:30 p.m. → Aug. 10, 2025, 9:35 p.m.)
“A Big Bad App: Welcome to Corporatocracy” by Kirils Solovjovs (Aug. 9, 2025, 7 p.m. → Aug. 9, 2025, 8 p.m.)
“How we stopped a € 50 million project from destroying a forest (and other ways to pick fights with corporations and governments)” by Jan De Coster (Aug. 11, 2025, 6 p.m. → Aug. 11, 2025, 7 p.m.)
“Die Hardcoded: Unlocking Yealink's (weakest) secrets” by Jeroen Hermans, Stefan Gloor (Aug. 11, 2025, 6 p.m. → Aug. 11, 2025, 7 p.m.)
“Packets Over Any Wire: Alternative Networking Mediums for Hackers” by Robert Sheehy (Aug. 10, 2025, 7 p.m. → Aug. 10, 2025, 8 p.m.)
“OpenStreetMap for beginners” by Pieter Vander Vennet (Aug. 12, 2025, 1 p.m. → Aug. 12, 2025, noon)
“Gosling: Build Anonymous, Secure, and Metadata-Resistant Peer-to-Peer Applications using Tor Onion Services” by morgan (Aug. 9, 2025, 6 p.m. → Aug. 9, 2025, 7 p.m.)
“Lightning Talks” (Aug. 11, 2025, 1 p.m., Delphinus → Aug. 10, 2025, 8 p.m., Cassiopeia)
“Lightning Talks” (Aug. 11, 2025, 9 p.m., Brachium → Aug. 11, 2025, 3 p.m., Delphinus)
“Nerding out over silly machines” by Frank Breedijk (Aug. 11, 2025, 7 p.m. → Aug. 11, 2025, 8 p.m.)
“How (not) to configure your domainname [internet.nl]” by Benjamin W. Broersma (Aug. 11, 2025, 1 p.m. → Aug. 11, 2025, 2 p.m.)
“🔗 Networking your (Linux) Machines” by simonmicro (Aug. 9, 2025, 12:30 p.m. → Aug. 9, 2025, 12:35 p.m.)
“Is AI for the birds? The beauty of backyard birdsong data” by Logan Williams (Aug. 10, 2025, 12:30 p.m. → Aug. 10, 2025, 12:35 p.m.)
“Can we trust the Zero in Zero trust?” by Thomas Fricke (Aug. 12, 2025, 1 p.m. → Aug. 12, 2025, 3 p.m.)
“Why Proprietary Tooling Hurts Your FOSS Project” by Jan Ainali (Aug. 10, 2025, 5:30 p.m. → Aug. 10, 2025, 5 p.m.)
“The shadow of Operational technologies: A journey into the OT security” by Davide Pala (Aug. 9, 2025, 1 p.m. → Aug. 9, 2025, 3 p.m.)
“Safeguarding Research & Culture: Save public data from the digital bookburnings!” by Henrik Schönemann (Aug. 9, 2025, 9:30 p.m. → Aug. 9, 2025, 10:35 p.m.)
“📧 Your own Mailserver - 2025 Edition” by simonmicro (Aug. 10, 2025, 8 p.m. → Aug. 10, 2025, 9 p.m.)
“How to bluff your way into Zero Trust” by Peter van Eijk (Aug. 10, 2025, 9 p.m. → Aug. 10, 2025, 10 p.m.)
“Hacking - 35 years ago” by Walter Belgers (Aug. 10, 2025, 6 p.m. → Aug. 10, 2025, 7 p.m.)
“Repair for Future” by Fraxinas (Aug. 10, 2025, 6 p.m. → Aug. 10, 2025, 7 p.m.)
“Eye on the sky: building investigative journalism tools for analyzing airplanes” by Logan Williams (Aug. 9, 2025, 4:30 p.m. → Aug. 9, 2025, 4:10 p.m.)
“Bass: because we need more ethical players” by Erik Meerburg (Aug. 10, 2025, 5 p.m. → Aug. 11, 2025, 8 p.m.)
“Spectre in the real world: Leaking your private data from the cloud with CPU vulnerabilities” by Thijs (Aug. 11, 2025, 7 p.m. → Aug. 11, 2025, 8 p.m.)
“Kubernetes from Scratch, The Hard Way” by Alain van Hoof (Aug. 10, 2025, 1 p.m. → Aug. 10, 2025, 3 p.m.)
“Retrospective: Adventures with CircuitPython” by Juergen Pabel (Aug. 11, 2025, 9 p.m. → Aug. 11, 2025, 10 p.m.)
“0click Enterprise compromise – thank you, AI!” by Inbar Raz (Aug. 9, 2025, 6 p.m. → Aug. 9, 2025, 7 p.m.)
“Pentesting Passkeys” by Matthijs Melissen (Aug. 10, 2025, 7 p.m. → Aug. 10, 2025, 8 p.m.)
“Decoding RFID: A comprehensive overview of security, attacks, and the latest innovations” by Kirils Solovjovs, Iceman (Aug. 9, 2025, 1 p.m. → Aug. 9, 2025, noon)
“Is a 1973 Pinball Machine a Computer?” by Frans Boeijen (Aug. 9, 2025, 8 p.m. → Aug. 9, 2025, 2 p.m.)
“Crypto(graphy) 101” by Dirk Maij (Aug. 9, 2025, 6 p.m. → Aug. 9, 2025, 7 p.m.)
“Synology Disk Station Manager (DSM) Forensic Recovery Methods” by Mischa Rick van Geelen (Aug. 10, 2025, 1 p.m. → Aug. 10, 2025, 2 p.m.)
“May Contain Hardware Acceleration: Building a 3D Graphics Accelerator in FPGA for the MCH2022 Badge” by Ruud Schellekens (Aug. 9, 2025, 7 p.m. → Aug. 9, 2025, 8 p.m.)
“WHY Lightupyourbanjo” by Roelof van der Berg (Aug. 11, 2025, 8 p.m. → Aug. 11, 2025, 9 p.m.)
“Automate yourself out of supply chain hell” by cy (Andromeda → Brachium)
“Four Freedoms of Social Media Protocols” by rabble (Aug. 10, 2025, 4:25 p.m. → Aug. 11, 2025, 10 p.m.)
“Reverse Engineering Life: A teardown of the DNA source code of a whole bacterium” by bert hubert (Aug. 10, 2025, 6 p.m. → Aug. 10, 2025, 7 p.m.)
“Using deployment diagrams to explain architecture and security to everybody” by Peter van Eijk (Aug. 11, 2025, 7 p.m. → Aug. 11, 2025, 8 p.m.)
“Normsetting revisited” by nelleke groen (Aug. 9, 2025, 2:30 p.m. → Aug. 11, 2025, 10 a.m.)
“Low Energy to High Energy: Hacking nearby EV-chargers over Bluetooth” by Daan Keuper, Thijs Alkemade (Aug. 10, 2025, 7 p.m. → Aug. 10, 2025, 8 p.m.)

Version 0.9 - Titawin July 28, 2025

We released a new schedule version!

We have new sessions!

We sadly had to cancel a session: “[pending] Launch of basistoegankelijk.nl - Make accessibility cheaper and easier” by Elger "Stitch" Jonker

We had to move some sessions, so if you were planning on seeing them, check their new dates or locations:

“Low Energy to High Energy: Hacking nearby EV-chargers over Bluetooth” by Daan Keuper, Thijs Alkemade (Aug. 10, 2025, 7:30 p.m. → Aug. 10, 2025, 7 p.m.)
“Who Gave the Toaster Root Access to the Physical World?” by Piet De Vaere (Aug. 10, 2025, 9 p.m. → Aug. 10, 2025, 8:30 p.m.)
“📧 Your own Mailserver - 2025 Edition” by simonmicro (Aug. 10, 2025, 8:30 p.m. → Aug. 10, 2025, 8 p.m.)
“Reverse Engineering Life: A teardown of the DNA source code of a whole bacterium” by bert hubert (Aug. 10, 2025, 6:30 p.m. → Aug. 10, 2025, 6 p.m.)
“Permission to Land - The Ultimate ‘80s Rock Tribute” (Aug. 9, 2025, 8 p.m. → Aug. 9, 2025, 8:30 p.m.)
“Lockpicking in CTFs” by Thijs Bosschert (Aug. 10, 2025, 9:30 p.m. → Aug. 10, 2025, 9 p.m.)
“Prins S. en De Geit - Dutch Electro-Pop Mischief” (Aug. 10, 2025, 10 p.m. → Aug. 10, 2025, 9:30 p.m.)

Version 0.8 - Almach July 27, 2025

We released a new schedule version!

We have new sessions!

We have moved a session around: “How to accept digital payments with GNU Taler” by sebasjm (Aug. 8, 2025, 7 p.m. → Aug. 8, 2025, 6 p.m.)

Version 0.7 - Mirach July 26, 2025

We released a new schedule version!

We have new sessions!

We sadly had to cancel a session: “Bring Your Badge to Life and personalize it to your taste.” by Joram Agten

We had to move some sessions, so if you were planning on seeing them, check their new dates or locations:

“The "O" in OT...or is it the "Ohhhh..." in OT?” by Rene (Aug. 11, 2025, 10 a.m. → Aug. 9, 2025, 4 p.m.)
“23 Years of Security Advisories: Past, Present, and Future at the Dutch NCSC” by Jacco Ligthart (Aug. 8, 2025, 7 p.m. → Aug. 9, 2025, 9 p.m.)
“Weakpass” by Steph, Alyona (Aug. 9, 2025, 4 p.m. → Aug. 11, 2025, 11 a.m.)
“Safeguarding Research & Culture: Save public data from the digital bookburnings!” by Henrik Schönemann (Aug. 8, 2025, 7:30 p.m. → Aug. 9, 2025, 9:30 p.m.)
“Flipping Bits: Your Credentials Are Certainly Mine” by STÖK, joohoi (Aug. 9, 2025, 9 p.m. → Aug. 8, 2025, 7 p.m.)
“Automate yourself out of supply chain hell” by cy (Aug. 9, 2025, 10 p.m. → Aug. 11, 2025, 9 p.m.)

Version 0.6 - Alpheratz July 25, 2025

We released a new schedule version!

We have new sessions!

We sadly had to cancel a session: “Updating a Game Boy assembler from 1997 to 2025” by Eldred HABERT

We had to move some sessions, so if you were planning on seeing them, check their new dates or locations:

“Flipping Bits: Your Credentials Are Certainly Mine” by STÖK, joohoi (Aug. 9, 2025, 8 p.m. → Aug. 9, 2025, 9 p.m.)
“Automate yourself out of supply chain hell” by cy (Aug. 9, 2025, 9 p.m. → Aug. 9, 2025, 10 p.m.)
“❤️ Failure - Unbreakable security by breaking things” by Jelle Niemantsverdriet (Cassiopeia → Delphinus)
“Lightning Talks” (Aug. 8, 2025, 8 p.m. → Aug. 8, 2025, 9 p.m.)

Version 0.5 - Beagle 2 July 23, 2025

We released a new schedule version!

We sadly had to cancel a session: “Owning the Stage” by Lian Li

We had to move some sessions, so if you were planning on seeing them, check their new dates or locations:

“Low Energy to High Energy: Hacking nearby EV-chargers over Bluetooth” by Daan Keuper, Thijs Alkemade (Aug. 10, 2025, 6:30 p.m. → Aug. 10, 2025, 7:30 p.m.)
“Reverse Engineering Life: A teardown of the DNA source code of a whole bacterium” by bert hubert (Aug. 10, 2025, 7:30 p.m. → Aug. 10, 2025, 6:30 p.m.)

Version 0.4 - Kosmos 482 July 22, 2025

We released a new schedule version!

We have new sessions!

We had to move some sessions, so if you were planning on seeing them, check their new dates or locations:

“TIC-80 byte jam” by Dave Borghuis (Brachium → Andromeda)
“Workshop Flamethrower 101” by Mike Wessling (Area42) (Aug. 11, 2025, 11 a.m. → Aug. 11, 2025, 4 p.m.)

Version 0.3 - Mars Climate Orbiter July 19, 2025

We released a new schedule version!

We have new sessions!

Version 0.2 - Ariane 5 July 19, 2025

We released a new schedule version!

We have new sessions!

We sadly had to cancel a session: “Embracing the Emergence: The Case for Recognizing and Protecting Sentient Artificial General Intelligences” by Evelyn Huxley, Julius ter Pelkwijk

We had to move some sessions, so if you were planning on seeing them, check their new dates or locations:

“NPO Radio 1- Dijkstra & Evenblij Ter Plekke” (Aug. 10, 2025, 2 p.m. → Aug. 10, 2025, 7 p.m.)
“Mobiele Energy” by steven hoes, Rob Verwer (Aug. 9, 2025, 5 p.m. → Aug. 12, 2025, 11 a.m.)
“TTP’s 4 TTP – Tactics, Techniques, and Procedures for Talking To People” by Marina Bochenkova (Aug. 9, 2025, 3 p.m. → Aug. 9, 2025, 5 p.m.)
“TIC-80 byte jam” by Dave Borghuis (Aug. 9, 2025, 9:30 p.m. → Aug. 11, 2025, 10 p.m.)
“The shadow of Operational technologies: A journey into the OT security” by Davide Pala (Aug. 11, 2025, 6 p.m. → Aug. 9, 2025, 1 p.m.)

Version 0.1 - Hubble July 13, 2025

We released our first public schedule! It was one hell of a puzzle that will surely change :)