New security measures for foreign students at ETH Zürich and EPFL Lausanne. Why?

https://www.reddit.com/r/ethz/comments/1gc2y1n/chinese_students_new_security_screening/
https://www.reddit.com/r/EPFL/comments/1gdavqn/is_this_real/
https://ethz.ch/staffnet/en/news-and-events/internal-news/archive/2024/10/dual-use-and-sanctions-these-applications-require-security-screening.html
https://ethz.ch/content/dam/ethz/associates/services/finance-and-controlling/open/Compliance/Exportkontrolle/Englisch/Fact-Sheet-Security-Screening-Master-studies.pdf

Why so drastic measures? Did something happen recently to explain why the Swiss government and ETH-Rat/Conseil des EPF suddenly take such harsh decisions? I’m not affected by it, but still, this seems way too harsh