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Re: [tor-talk] google analytics says it can track across separate domains

Thus spake Mike Perry (mikeperry@xxxxxxxxxxxxxx):

> Thus spake Joe Btfsplk (joebtfsplk@xxxxxxx):
> > A few months ago, someone raised the question of TBB or any included
> > addon not blocking web beacons / trackers and perhaps something like
> > Ghostery should be included in TBB (I think).  I asked about beacons
> > (web bugs) compromising anonymity (not to mention privacy).  Can't
> > find the post, but I believe either Mike or Roger replied that it
> > shouldn't be an issue because web beacons, like Google Analytics,
> > can't track from site to site.  Hope I've got the essence of the
> > reply correct.
> Yes, that is correct. We consider the ability to link user activity
> across different url bar domains a violation of our design requirements
> (https://www.torproject.org/projects/torbrowser/design/#privacy), and
> any ability to do so is a major bug.
> Unfortunately, there are a couple such bugs we're already currently
> aware of:
> https://trac.torproject.org/projects/tor/query?keywords=~tbb-linkability
> We'll fix them, eventually. Help is always appreciated, though.

Oh, I should also mention
as the laundry list of linkability mechanisms we've already at least
partially fixed.

Mike Perry

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