Tor Project director Andrew Lewman went over the possible ways that over 400 hidden services on dozens of servers were located by law enforcement during Operation Onymous. While some of the servers were related to criminal activity (such as Silk Road 2.0), at least some of the servers were not—including several that were acting as infrastructure for Tor's anonymizing network. And the only answer Lewman could currently offer as to how the sites were exposed was "We don't know."...