Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
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xotoxot.bsky.social
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
@xotoxot.bsky.social
Visiting Professor Karlstad University. Associate professor Radboud University Nijmegen. Privacy Engineering Boffin.

Author of "Privacy Is Hard and Seven Other Myths. Achieving Privacy Through Careful Design", MIT Press, 2021.

Posts in English and Dutch
My great colleague Gunes Acar has an open PhD position in online tracking and web security. See here for details:

www.ru.nl/en/working-a...

Join us!
PhD Position: Digital Privacy and Security | Radboud University
Do you want to work as a PhD Position: Digital Privacy and Security at the Faculty of Science? Check our vacancy!
www.ru.nl
October 3, 2025 at 6:02 PM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
Seriously that text goes so hard, I love it:

"[My new license] is not following the OSI definition of open-source because i don’t give a damn how capital defines its needs."
tante.cc tante @tante.cc · Sep 19
"The Free Software Foundation has been sliding into irrelevance more and more by entirely failing to address its big Creepy Uncle problem. Open-Source has turned into a form of unpaid internship to be hired to make shitty apps that bring more surveillance and ads to our world."
Introducing the Forklift Certified License—Aria’s Barks
It's not following the OSI definition of open-source because i don't give a damn how capital defines its needs.
aria.dog
September 19, 2025 at 10:16 AM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
🚨Our governments are about to decide whether 450M Europeans deserve privacy - or not.

Help ensure your country says NO to Chat Control: Call you local representatives!

Privacy is not negotiable. Speak up now. ✊ #privacy

👉 More on how to stop Chat Control: tuta.com/blog/chat-co...
September 9, 2025 at 7:24 AM
Europe is still pushing for the scanning of all your outgoing messages for potential child sexual abuse material (the so called 'chat control' proposal). This is bad for privacy, cripples end-to-end encryption, and makes apps like WhatsApp and Signal no longer secure for business and government use.
csa-scientist-open-letter.org
September 9, 2025 at 7:22 AM
A secure and privacy friendly offline digital euro

blog.xot.nl/2025/09/04/a...
A secure and privacy friendly offline digital euro
blog.xot.nl
September 4, 2025 at 11:52 AM
De hack bij Clinical Labs had eenvoudig voorkomen kunnen worden.

blog.xot.nl/2025/08/26/d...
De hack bij Clinical Labs had eenvoudig voorkomen kunnen worden.
blog.xot.nl
August 26, 2025 at 6:15 PM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
GroenLinks/PvdA komt na de VVD nu ook met een woonplan: “Bouwen voor de sociale meerderheid”.

Net als de plannen van de VVD analyseren we: of het goede ideeën zijn? En wie profiteren er (en wie niet)?

Kort draadje 🧵
July 10, 2025 at 9:11 PM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
De Europese Commissie komt met een leeftijdsverificatie-app die moet voorkomen dat minderjarigen pornosites kunnen bezoeken. Deskundigen betwijfelen of zo'n app effectief is. "Interesse van jongeren verdwijnt niet."
Brussel komt met leeftijdslot voor pornosites, maar twijfels bij deskundigen
De Europese Commissie komt met een leeftijdsverificatie-app die moet voorkomen dat minderjarigen pornosites kunnen bezoeken. "Interesse van jongeren verdwijnt niet."
nos.nl
July 8, 2025 at 8:01 AM
Please consider signing this open letter to stop the uncritical adoption of AI technologies in academia

openletter.earth/open-letter-...
Open Letter: Stop the Uncritical Adoption of AI Technologies in Academia
openletter.earth
June 30, 2025 at 1:49 PM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
I think one main issue I have with the whole "EURO Stack" stuff is that it is not looking for an alternative. It's "we want what we got just with EU companies". But the fact that the Internet and its services have been turned into a mall is the big fucking problem.
June 30, 2025 at 9:26 AM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
Like what a ridiculous amount of complexity to support an obsolete signature format from decades ago. Just pick a different signature scheme instead of inventing a whole new ZK scheme. news.dyne.org/longfellow-z...
The Longfellow ZK (Google-zk)
Analysis of the longfellow-zk implementation, also known as google-zk, for MDOC/mdl selective disclosure of verifable credentials.
news.dyne.org
June 30, 2025 at 9:39 AM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
This only happens to you once.
June 24, 2025 at 8:00 AM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
I’ve begun my journey to reduce my reliance on US tech, so it’s time for an update on how it’s all going!

No surprise, some services are far more easy to replace than others. Email and streaming are low-hanging fruit; maps and messaging can be more difficult. But we should still make the effort.
Getting off US tech is no easy task
But that doesn’t mean we shouldn’t make the effort
www.disconnect.blog
June 23, 2025 at 1:06 PM
Sovereignty-washing
blog.xot.nl/2025/06/18/s...
Sovereignty-washing
blog.xot.nl
June 18, 2025 at 6:13 AM
My #Ableton #Live remote script for the Electra One (electra.one) has been updated to work with Live 12.2, which was released today. See:

codeberg.org/xot/ElectraOne

Enjoy!
Electra One
Electra One: The MIDI Controller Designed for Serious MIDI Work.
electra.one
June 11, 2025 at 3:32 PM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
Meta and Russian Yandex engaged in unprecedented internet tracking practices, likely illegal with EU data protection law. localmess.github.io
June 5, 2025 at 9:48 AM
“Whereas if you campaign on housing, education, healthcare, which are major issues in the Netherlands, then you force the VVD to have a position on that. You even force Wilders to have a position on that.”

Amen.
June 5, 2025 at 7:43 AM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
ANALYSIS: The EU is set to deliver a sobering message to a growing movement in Europe calling for a detox from U.S. Big Tech.

The message? That ain’t happening anytime soon.

W/ @mathieupollet.bsky.social

www.politico.eu/article/euro...
Europe’s dream to wean off US tech gets reality check
As the Trump administration plays hardball, a new EU strategy puts collaboration front and center.
www.politico.eu
June 5, 2025 at 7:16 AM
Great talk by Theia Henderson "Protocols, not platforms... but the API first!" on the (un)usability of current protocols. Her main messages: write an API first, before specifying the protocol.

recapworkshop.online
ReCAP Workshop
recapworkshop.online
June 4, 2025 at 2:00 PM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
"Er is maar één belang dat telt.... het algemeen belang" #verkiezingen
June 3, 2025 at 10:16 AM
Reposted by Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️
Uiteraard! Dit komt ook uitgebreid aanbod op de Digital Summit op 14 juni as in Zwolle. Kijk hier: groenlinkspvda.nl/agenda/digit... Ben je erbij?
Digital Summit 2025 | GroenLinks-PvdA
Welke politieke keuzes zijn nodig om de digitale samenleving van morgen vorm te geven? Meld je aan voor onze Digital Summit en praat mee over de digitale toekomst!
groenlinkspvda.nl
May 26, 2025 at 8:11 PM