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

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Apr 12 18:21:31 UTC 2016


#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:
 Reviewer:                                |        Sponsor:  None
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Comment (by phw):

 Replying to [comment:227 toruser250]:
 > why are you guys even using googles captcha? not only do I have to solve
 them constantly on all of the sites i visit, they're not stopping bots
 either. only us.

 This deserves emphasis.  I know, it's an unpleasant question because the
 business model of many CloudFlare customers relies on being able to
 distinguish bots from people.  Many years ago, that was a reasonable
 assumption.  Today, it no longer is.  Here's the more comprehensive
 version of the paper toruser250 referenced:
 http://www.cs.columbia.edu/~polakis/papers/sivakorn_eurosp16.pdf

 These folks were able to automatically solve ~71% of reCAPTCHA challenges.
 I'm quite sure that's better than what many humans can do, me included.
 CAPTCHAs are obsolete.  Unfortunately, it's not much fun to explain that
 to companies whose business model did not adapt, so I can somewhat relate
 to CloudFlare's issues.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18361#comment:228>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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