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Privometer: Privacy protection in social networks

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5 Author(s)
Talukder, N. ; Purdue Univ., West Lafayette, IN, USA ; Ouzzani, M. ; Elmagarmid, A.K. ; Elmeleegy, H.
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The increasing popularity of social networks, such as Facebook and Orkut, has raised several privacy concerns. Traditional ways of safeguarding privacy of personal information by hiding sensitive attributes are no longer adequate. Research shows that probabilistic classification techniques can effectively infer such private information. The disclosed sensitive information of friends, group affiliations and even participation in activities, such as tagging and commenting, are considered background knowledge in this process. In this paper, we present a privacy protection tool, called Privometer, that measures the amount of sensitive information leakage in a user profile and suggests self-sanitization actions to regulate the amount of leakage. In contrast to previous research, where inference techniques use publicly available profile information, we consider an augmented model where a potentially malicious application installed in the user's friend profiles can access substantially more information. In our model, merely hiding the sensitive information is not sufficient to protect the user privacy. We present an implementation of Privometer in Facebook.

Published in:

Data Engineering Workshops (ICDEW), 2010 IEEE 26th International Conference on

Date of Conference:

1-6 March 2010