Academic Commons

Reports

The Failure of Online Social Network Privacy Settings

Madejski, Michelle; Johnson, Maritza Lupe; Bellovin, Steven Michael

Increasingly, people are sharing sensitive personal information via online social networks (OSN). While such networks do permit users to control what they share with whom, access control policies are notoriously difficult to configure correctly; this raises the question of whether OSN users' privacy settings match their sharing intentions. We present the results of an empirical evaluation that measures privacy attitudes and intentions and compares these against the privacy settings on Facebook. Our results indicate a serious mismatch: every one of the 65 participants in our study confirmed that at least one of the identified violations was in fact a sharing violation. In other words, OSN users' privacy settings are incorrect. Furthermore, a majority of users cannot or will not fix such errors. We conclude that the current approach to privacy settings is fundamentally flawed and cannot be fixed; a fundamentally different approach is needed. We present recommendations to ameliorate the current problems, as well as provide suggestions for future research.

Subjects

Files

More About This Work

Academic Units
Computer Science
Publisher
Department of Computer Science, Columbia University
Series
Columbia University Computer Science Technical Reports, CUCS-010-11
Published Here
July 8, 2011
Academic Commons provides global access to research and scholarship produced at Columbia University, Barnard College, Teachers College, Union Theological Seminary and Jewish Theological Seminary. Academic Commons is managed by the Columbia University Libraries.