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Undoing of Privacy Policies on Facebook

Abstract : Facebook has a very flexible privacy and security policy specification that is based on intensional and extensional categories of user relationships. The former is fixed by Facebook but controlled by users whereas the latter is facilitated by Facebook with limited control to users. Relations and flows among categories is through a well-defined set of protocols and is subjected to the topology of underlying social graph that continuously evolves by consuming user interactions. In this paper, we analyze how far the specified privacy policies of the users in Facebook preserve the standard interpretation of the policies. That is, we investigate whether Facebook users really preserve their privacy as they understand it or certain of their innocuous actions leak information contrary to their privacy settings. We demonstrate the kind of possible breaches and discuss how plausibly they could be set right without compromising performance. The breaches are validated through experiments on the Facebook.
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Submitted on : Monday, January 15, 2018 - 2:08:14 PM
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Vishwas T. Patil, R. K. Shyamasundar. Undoing of Privacy Policies on Facebook. 31th IFIP Annual Conference on Data and Applications Security and Privacy (DBSEC), Jul 2017, Philadelphia, PA, United States. pp.239-255, ⟨10.1007/978-3-319-61176-1_13⟩. ⟨hal-01684373⟩



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