it’s difficult to find information on the topic which is why i’m posting here. a large number, likely a majority, of tor nodes are based in fourteen eyes countries. having both your entrance and exit nodes monitored (say, by their ISPs) opens you up to a more-or-less trivial timing correlation attack. on the other hand, blocking huge swaths of the network, according to the tor project, can open you up to deanonymization too.

it’s often been said that if your adversary is the intelligence agencies, you’re fucked anyway. that’s more than reasonable for active attacks. i don’t think that’s necessarily true for passive dragnet surveillance. so my question is, has anyone considered this particular vector of attack? is it better to block fourteen eyes or not? is it even worth asking the question?