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Man reveals secret recipe behind undeletable cookies

August 17, 2011

A privacy researcher has revealed the evil genius behind a for-profit web
analytics service capable of following users across more than 500 sites, even
when all cookie storage was disabled and sites were viewed using a browser’s
privacy mode.

The technique, which worked with sites including Hulu, Spotify and GigaOm, is controversial because it allowed analytics startup KISSmetrics to construct detailed browsing histories even when users went through considerable trouble to prevent tracking of the websites they viewed. It had the ability to resurrect cookies that were deleted, and could also compile a user’s browsing history across two or more different browsers. It came to light only after academic researchers published a paper late last month.

Source Man reveals secret recipe behind undeletable cookies

 

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