Meet the online tracking device that is virtually impossible to block
July 22, 2014
A new kind of tracking tool, canvas fingerprinting, is being used to follow visitors to thousands of top websites, from WhiteHouse.gov to YouPorn
JULIA ANGWIN (PROPUBLICA)
Update: A YouPorn.com spokesperson said that the website was "completely unaware that AddThis contained a tracking software that had the potential to jeopardize the privacy of our users." After this article was published, YouPorn removed AddThis technology from its website.