Online tracking is becoming more sophisticated and thus increasingly difficult to block. Modern browsers expose many surfaces that enable users to be uniquely identified, including Flash cookies and browser fingerprints. In a new paper that will appear at ACM CCS, we present the first large scale study of three advanced tracking mechanisms — canvas fingerprinting, evercookies, and cookie syncing. We developed novel measurement techniques and found that these tracking mechanisms are used on a large number of sites. Our findings on canvas fingerprinting, in particular, have been in the news (Propublica, BBC, EFF).
In this blog post I’ll focus on a different part of our paper that looked at cookie syncing, the process by which two different trackers link the IDs they’ve given to the same user.
more here............https://freedom-to-tinker.com/blog/englehardt/the-hidden-perils-of-cookie-syncing/
In this blog post I’ll focus on a different part of our paper that looked at cookie syncing, the process by which two different trackers link the IDs they’ve given to the same user.
more here............https://freedom-to-tinker.com/blog/englehardt/the-hidden-perils-of-cookie-syncing/