Government internet monitoring and filtering?
There is of course no disclosure from the government about how the Great Firewall ( GFW ) works, but dome studies does exist about it. You will find most sources on http://en.m.wikipedia.org/wiki/I …
Mostly, it uses DNS block to erase websites from the map, which means it doesn ‘t block specific pages of Facebook but the whole domain : Facebook.com returns 404 error within mainland China.
For Skype, the CCP has a partnership with the company and the version available in China is bugged and allow your conversation to be scanned. It is called Tom Skype.
It goes the same way with all social networks and Internet companies willing to get into China market (Chinese or foreign). They have to take care about their content being “in harmony “ with censorship restrictions by themselves. If they don ‘t, their website/app are very likely to be blocked altogether in the next weeks.
This text was originally published in quora.