The GFW is apparently quite sophisticated[1] and likely uses machine learning among other things such as TLS side channel attacks. [1] http://blog.zorinaq.com/

The GFW is apparently quite sophisticated[1] and likely uses machine learning among other things such as TLS side channel attacks. [1] http://blog.zorinaq.com/my-experience-with-the-great-firewall-of-china/ http://blog.zorinaq.com/my-experience-with-the-great-firewal...