Researchers at Princeton have uncovered a new web-tracking method thats nearly impossible to block. Its called canvas fingerprinting, and can potentially follow users between sites even if theyve disabled more conventional methods like cookies and isnt logged into Facebook. Instead, the tactic works by asking the browser to draw a hidden image, and using that image to track the unique properties of the browser. Researchers found the tactic being used on five percent of the top 1000 sites on the website, including Whitehouse. …
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