Could China blocking VPNs lead to spying on business?

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. The Guardian reported recently that the Chinese government is blocking internet services that have been able to "burrow secret...