APT29, a/k/a Cozy Bear, has used Tor and a technique called domain fronting in order to secure backdoor access to targets for nearly two years running.

Accessing Facebook over Tor may seem to be a contradiction, but apparently that’s not the case for a million or so users of the anonymity service. Facebook on Friday said that in April, for the first time, there were more than one million people accessing Facebook over Tor in a 30-day period. As a comparison...