The "Great Firewall of China," designed to prevent its citizens from accessing some overseas content, has apparently undergone an upgrade.
And some observers say this may not only be an effort to stop citizens from reading or viewing Western information, but also to spy on international corporations doing business in the country who encrypt their internal communications...
"A number of companies providing virtual private network (VPN) services to users in China say the new system is able to 'learn, discover and block' the encrypted communications methods used by a number of different VPN systems," the report said.
"China Unicom, one of the biggest telecoms providers in the country, is now killing connections where a VPN is detected, according to one company with a number of users in China," the report said. (more) (more)