Post by TikTok

At TikTok, we believe stronger privacy systems are built through continuous testing, collaboration, and shared exploration. That’s how PET Arena came to life, a global Capture the Flag challenge designed to help researchers stress-test privacy-enhancing technologies (PETs) in simulated environments. Led by Oblivious in collaboration with TikTok and Prof. Florian Tramèr, the challenge brought together nearly 100 researchers, who submitted over 5,900 attempts to explore edge cases, challenge assumptions, and uncover valuable patterns and insights. These insights help strengthen how privacy systems are designed, tested, and improved over time. Swipe through to explore how researchers helped push privacy-enhancing technologies to their limits through PET Arena. 👉 If you’d like to go deeper into the challenge and what we learned, check out the full article here: https://brnw.ch/21x3EcD Interested in what’s next for PET Arena? Sign up to the mailing list linked in the article to be among the first to hear about the second edition.