All liaisons are dangerous when all your friends are known to us

  • Authors:
  • Daniel Gayo Avello

  • Affiliations:
  • University of Oviedo, Oviedo, Spain

  • Venue:
  • Proceedings of the 22nd ACM conference on Hypertext and hypermedia
  • Year:
  • 2011

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Abstract

Abstract Online Social Networks (OSNs) are used by millions of users worldwide. Academically speaking, there is little doubt about the usefulness of demographic studies conducted on OSNs and, hence, methods to label unknown users from small labeled samples are very useful. However, from the general public point of view, this can be a serious privacy concern. Thus, both topics are tackled in this paper: First, a new algorithm to perform user profiling in social networks is described, and its performance is reported and discussed. Secondly, the experiments --conducted on information usually considered sensitive-- reveal that by just publicizing one's contacts privacy is at risk and, thus, measures to minimize privacy leaks due to social graph data mining are outlined.