Experts from Great Firewall Report analyzed recent upgrades to Chinas censorship system and revealed that it can be circumvented. The group published a detailed analysis on how the Chinese government has improved its surveillance system to detect and block the popular circumvention tools Shadowsocks and its variants. Shadowsocks leverages SOCKS5 proxies outside China to avoid government censorship. It was created in 2012 by a Chinese programmer named clowwindy, and multiple implementations of the protocol have been made available since.”]
Source: https://securityaffairs.co/wordpress/114053/digital-id/chinas-great-firewall-bypass.html