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Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️

@xot@someone.elses.computer
mastodon 4.6.5
  • Open on someone.elses.computer

Visiting Professor Karlstad University. Associate professor privacy enhancing protocols and privacy by design at Radboud University Nijmegen. Privacy Engineering Boffin.

Author of "Privacy Is Hard and Seven Other Myths. Achieving Privacy through Careful Design."MIT Press, October 2021. https://mitpress.mit.edu/books/privacy-hard-and-seven-other-myths

1421 Followers
625 Following
26 Posts
Joined July 02, 2023
Work:
https://www.cs.ru.nl/~jhh
Blog:
https://blog.xot.nl
Other:
https://www.xot.nl
Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 3w ago

Maxim Februari is weer op dreef!

“Maar vooruitgang betekent niet dat politici machinaal met het land in gesprek gaan. Wil je als politicus niet meer met je eigen burgers praten? Wees dan duidelijk. Kom niet naar herdenkingscentrum Westerbork, kom niet naar het parlement in Den Haag. Laat een Chinees TikTokfilmpje bezorgen door een Tesla van Elon Musk.”

https://www.nrc.nl/nieuws/2026/09/15/producten-uit-de-democratiewinkel-a4936654?gift_token=4936654~1790146964~3lyNxDeAS72AhASGmidH-g~OD0UGd5P8fLxgBUDTLuuk8ZOIn4qfID0igNoe2PJC8I

nrc.nl
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 4mo ago

Ah. Dus de AP dacht: wat Tata Steel kan kunnen wij ook 🤦

https://nos.nl/artikel/2614241-advocaat-van-tiktok-en-meta-wordt-voorzitter-privacywaakhond-ap

nos.nl

Advocaat van TikTok en Meta wordt voorzitter privacywaakhond AP

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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 6mo ago
Replying to
@joepbc Gemeente Groningen gaat in ieder geval van X af!
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Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 3mo ago

Today thirty years ago I defended my [PhD thesis](https://www.cs.ru.nl/~jhh/publications.html#thesis). A little more than a month before, my son was born. And five days after his birth my father died. Three life-changing events compressed in thirty nine days. That somehow triggered the journey that took me here, now, thirty years later. To this amazing state of being. I still cannot believe this all to be real.

cs.ru.nl

Jaap-Henk Hoepman @ Radboud University Nijmegen : Publications

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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago

European governments are getting WhatsApp and Signal out of their system:

https://www.politico.eu/article/european-civil-servants-new-messaging-services/

Sounds great. Until you realise that if politicians and officials get to use their own end-2-end encrypted communication app, there is very little stopping them from backdooring Signal and Whatsapp. Remember that state security risks were the main reason why Dutch intelligence opposed client side scanning!

European civil servants are being forced off WhatsApp
POLITICO

European civil servants are being forced off WhatsApp

Governments want to move away from “platforms over which we have no control,” says Dutch minister.

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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago
Replying to
@janvlug @marleenstikker It is not entirely clear whether he was actually fired or referred on LinkedIn to a quote in newspaper Trouw that suggested he was fired. The newspaper later retracted that statement.
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 6mo ago

Online age assurance raises thorny questions. (And privacy is not really one of them.)

https://blog.xot.nl/2026/04/09/online-age-assurance-raises-thorny-questions/index.html

blog.xot.nl
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago
Replying to
Maar mogen we dezelfde aandacht dan ook verwachten voor het beschermen van de moslimgemeenschap? Want ook hun veiligheid wordt (zelfs door bepaalde volksvertegenwoordigers) bedreigt. Ik vind de eenzijdige aandacht voor de zorgen van de Joodse gemeenschap behoorlijk schrijnend, eerlijk gezegd.
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago

Mooi opiniestuk Jos Palm in NRC vandaag:
“Een cruciale eerste stap is in ieder geval de depolitisering van de Holocaust door het ondubbelzinnig veroordelen van de Israëlische oorlogsmisdaden door onze regering. Dat zou een mooi begin zijn, belangrijker voor de bestrijding van het groeiende antisemitisme dan de ongetwijfeld welgemeende zorgen die politici erover uitspreken.”

https://www.nrc.nl/nieuws/2026/05/04/israel-bombardeert-de-herinnering-aan-de-holocaust-kapot-a4926627?gift_token=4926627~1778567259~3lyNxDeAS72AhASGmidH-g~QqoPBOiXZpViR4xG3qpe8wt8bBbdWFpJqjHimP2ub38

nrc.nl
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago

Privacy-adviseur BZK slaat alarm om overname DigiD | de Volkskrant https://digitalekrant.volkskrant.nl/volkskrant/2766/article/2494306/4/2/render/?token=b56656082a58573dcfef3947f3995fef

digitalekrant.volkskrant.nl
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 6mo ago
Replying to
@Sascha@bonn.social @aerique@genart.social Thanks. Wasn’t aware that all Eurosky-PDS-users are limited by Blieskys rate limit, even when talking to each other. That’s a fundamental difference indeed.
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago
Replying to
@rene_mobile @stefan Indeed. See also my recent blog about exactly this issue https://blog.xot.nl/2026/04/09/online-age-assurance-raises-thorny-questions/index.html
blog.xot.nl
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago
Replying to
@Piratenpartij @Logius @stasdigi @huibmodderkolk Vreemd.. bij mij hangt onder deze toot een Zweedse toot uit 2016 (wat mij deed realiseren dat Mastodon inderdaad al zo oud is)
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago
Replying to
@ronnylam@mastodon.social @Marloezovic@mastodon.nl Ik vrees het ergste: de app wordt er met grote haast doorgedrukt, omdat de commissie niet eens wil wachten op de echte Europese Identity Wallet - die juist al die benodigde features al/wel heeft.
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Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 6mo ago
Replying to
@badambassador Actually I specifically mention that there are in essence no privacy concerns with a wallet based approach, so no need to use age estimation (which DOES have privacy concerns for all the methods I am aware of.
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 6mo ago
Replying to
@Sascha@bonn.social @aerique@genart.social But how is this different from AcrivityPub/Mastodon? If I am on a large instance A and want to reach members of another large instance B I need the cooperation of B too (it needs to federate with me), no?
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Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 6mo ago
Replying to
@joepbc Adopt, adapt & improve!
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Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 9mo ago
Replying to
@djoerd@idf.social @jesper@agda.club @jfdm@discuss.systems @peter_sewell_@types.pl @wilbowma@types.pl Me too. I used cryptpad.fr forms for collecting signatures.
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Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago
Replying to
@Felienne @Radboud_uni Zoals de aankondiging van deze cursus https://www.ru.nl/en/radboud-into-languages/courses/write-smarter-with-generative-ai
Write smarter with generative AI | Radboud University
ru.nl

Write smarter with generative AI | Radboud University

Do you regularly use AI tools in your writing process, but do you think there's more to be gained from them? In this workshop, you will learn how to work even smarter with GenAI, so that you not only get better results, but also save time.

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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 6mo ago
Replying to
@wearenew_public Nice! And I agree with this advice: “the public sector should leverage its power as a major procurer to support alternatives to big tech” as well as “Double down on the enforcement of existing laws. Far from hindering innovation, regulation and laws provide crucial guardrails to guide innovation and ensure a level playing field.”
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Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago
Replying to
@Felienne @dingemansemark Als het deze kant op rolt zou dat heel heel mooi zijn…
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Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 4mo ago
Replying to
@arjen@idf.social Ja nogal
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Open post
Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 5mo ago
Replying to
@isotopp@infosec.exchange @notjustbikes@social.notjustbikes.com Roughly corresponds to what I am seeing in my home, with a recent heat pump and 18 year old solar panels. No battery yet, but if we had, we would also not consume any power from the grid from mid April to early October.
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Jaap-Henk Hoepman 🟥 ⬜️ 🟩 ⬛️ @xot@someone.elses.computer
· 7mo ago
Replying to
@bjacobs@social.edu.nl In this particular case, subsequent reporting could include a link to the original source hosted on the DoJ website, as proof of authenticity. But as you know, I'm not convinced that authenticity is an effective antidote to misinformation, see: https://ojs.weizenbaum-institut.de/index.php/wjds/article/view/5_4_3
ojs.weizenbaum-institut.de
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