From what I was told, around 2014 in China, there used to be a responsible-disclosure platform called WooYun that existed for a while (some of its articles has submitted to ~100 upvotes on HN). It was similar to HackerOne, and attracted a significant number of infosec researchers to hunt bugs and report it to the vendors.

Until 2016, when the government arrested its founders.

* WSJ: China’s ‘White-Hat’ Hackers Fear Dark Times After Community Founder Is Detained

https://blogs.wsj.com/chinarealtime/2016/08/01/chinas-white-...

* China Arrests 10 White Hats from WooYoun Ethical Hacking Community

https://news.softpedia.com/news/china-arrests-10-white-hats-...