[tbb-bugs] #18361 [Tor Browser]: Issues with corporate censorship and mass surveillance

[Tor Bug Tracker & Wiki]

#18361: Issues with corporate censorship and mass surveillance
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 Reporter:  ioerror                       |          Owner:  tbb-team
     Type:  enhancement                   |         Status:  new
 Priority:  High                          |      Milestone:
Component:  Tor Browser                   |        Version:
 Severity:  Critical                      |     Resolution:
 Keywords:  security, privacy, anonymity  |  Actual Points:
Parent ID:                                |         Points:
  Sponsor:                                |
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Comment (by sjmurdoch):

 Replying to [comment:107 cypherpunks]:

 > Obviously you are not a Tor user, otherwise you would have immediately
 realised the manifest falsehood of your assertion.

 Actually I am a Tor user.

 > Since around Dec. 2015 Cloudflare almost certainly blocks **all** exit
 nodes. If on some exceedingly rare occasion we aren't blocked is because
 (a) the Tor network, and its consensus, is dynamic and cloud flare
 obviously doesn't do live probing, it probably keeps a cached blacklist
 that only updates every few weeks or so; (b) something that some
 cypherpunks and people who actually have bothered to set up nodes know.

 You might feel the blocking rate is higher than it actually is because the
 blocking probability is proportional to the probability of the node being
 selected. So there are plenty of Tor nodes that are unblocked, but the
 chances of you selecting them are very small.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18361#comment:108>
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