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Re: [tor-bugs] #18361 [Tor Browser]: Issues with corporate censorship and mass surveillance
#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 cypherpunks):
Replying to [comment:105 sjmurdoch]:
> We have done a survey of this problem and the results are published in
the paper
[https://sec.cs.ucl.ac.uk/users/smurdoch/papers/ndss16doyousee.pdf '"Do
You See What I See? Differential Treatment of Anonymous Users"'] (see also
the [https://www.benthamsgaze.org/2016/02/23/do-you-see-what-i-see/
accompanying blog post]). Our results show that Cloudflare blocks around
10â50% of Tor nodes and is one of the major reasons that Tor users are
unable to access websites from the Alexa top-1000 list (though it was
worse before June 2015).
Obviously you are not a Tor user, otherwise you would have immediately
realised the manifest falsehood of your assertion.
Your data is already outdated, your conclusions, at least in this topic,
stale. Maybe 10-50% was a reasonable estimate when you did your data
acquisition, not anymore.
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 cloudflare
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.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18361#comment:107>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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