The thing we notice when looking at the history of Russia and China is that they are two societies where the secret police have always been in evidence. The Czars and the Emperors employed them extensively and anyone thought to undermine society was on the watch list and if not imprisoned, restricted.
So It comes as no surprise that the communist regime have utilised the tradition to the full. But most surprising of all is the revelation that Xi Jinping and his cabal now control the Internet in China.
Just imagine what you have to do to achieve that.