Zerforschung is a German group that analyzes apps, test certificates and web services to find security flaws and data leaks.
Commenters call it amazing investigative journalism, praising its Djokovic test certificate analysis, its warning that Hive exposes user data, and the humorous Zapptales post.
zerforschung.org does an amazing job!
They have also recently analyzed Djokovic's test certificate:
https://zerforschung.org/posts/djokovic-pcr-test-en/
Stuff like that is super interesting. I love this investigative journalism. Another one I find captivating is: https://www.bellingcat.com/
Zerforschung is funny, if you want a fun ride read this about "making photobooks out of your personal messages":
https://zerforschung.org/posts/zapptales/
What could go wrong? Everything.
Perhaps @dang can change the link to the blogpost shared by zerforschung at the bottom of the thread which is written in English?
https://zerforschung.org/posts/djokovic-pcr-test-en/
They have this thread in a blog post in English: https://zerforschung.org/posts/djokovic-pcr-test-en/
Suggest changing the link to that.
If you followed the thread, at the end they did mention they made it a blog post:
https://zerforschung.org/posts/djokovic-pcr-test-en/
Zerforschung also provides English version on their webpage:
https://zerforschung.org/posts/djokovic-pcr-test-en/