It is trivial for global passive adversaries, like the government or
large telcom companies, to link true sources and true destinations of
Tor aims to provide anonymity against weaker, local adversaries - and
even then, adversaries can win, as investigated in these papers.
Or, for a lot of papers on anonymity,
I would bet it happens more often than we'd like to think, as practical
low-cost anonymity is still an open problem.
Drake Wilson wrote:
> On Mon, Aug 27, 2007 at 01:37:55PM -0700, Rouslan Nabioullin wrote:
>> Just curious, up to date has anyone been caught while using Tor?
> That's a very vague question.
> Suppose I'm using Tor to hide my current IP address, since I don't want
> people to know that I'm actually posting something from a secret hideout
> in Paraguay. I still post my full name and telephone number, so
> everyone knows that I made the post, and they can find out where I usually
> live by using reverse lookup on the number, but my rivals at Foocorp never
> manage to associate me with the hideout. Have I been "caught"?
> You can attach arbitrarily complicated semantics to the idea of
> "identity" and what it means to have been "revealed" in this context,
> so you'll need to be much clearer than that to get any reasonable answer
> out. Even then, I doubt the data are easy to get reliably, unless perhaps
> there's been a case of someone being tracked down while using Tor that was
> reported in major broadcast media. If the NSA were keeping tabs on Tor
> users somehow, it'd be very hard to find out.
> ---> Drake Wilson