Three of the circumvention tools — DynaWeb FreeGate, GPass, and FirePhoenix — used most widely to get around China’s Great Firewall are tracking and selling the individual web browsing histories of their users. Data about aggregate usage of users of the tools is published freely. You can see, for example, that the three sites most visited by users of these circumvention tools are live.com, google.com, and secretchina.com. Aggregate data like this is a terrific resource for those of us interested in researching circumvention tool usage, and not much of a privacy risk for the circumventing users if it is only stored (as well as displayed) in the aggregate.
