Advertising Cookies Let You Easily Be Tracked All Over the Web


Tue, Apr 8th, 2014 20:00 by capnasty NEWS

Back when the NSA's spying became mainstream news, it was revealed that they were able to track users simply by using Google's ad-tracking cookies. On The Verge, Russell Brandom reports on a paper from computer scientists at Princeton who explain exactly how that is done and how easily it can be accomplished.

As it turns out, trackers are displaying a surprising amount of information in public. Each ad system gives a user a unique ID number, but by following the same browser session from system to system, the researchers were able to tie together the vast majority of a given user's web requests. By following those same cookies to identity-based services like Facebook and Google+, the researchers were able to give a name to each user.



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