ZDNet reports that Facebook has denied technologist Nik Cubrilovic's claim that the social networking site tracks users even after they have logged out. Cubrilovic, whose claims incited concerns among privacy advocates this week, says Facebook has since made changes to the logout process, alleviating privacy concerns. He has detailed the functions of what he says are the site's five persistent cookies, including the user ID, which he says is now destroyed when a user logs out. The rest of the cookies, Cubrilovic says, are not concerning and users "shouldn't worry about them."
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