Information revelation and privacy in online social networks
Proceedings of the 2005 ACM workshop on Privacy in the electronic society
Proceedings of the 16th international conference on World Wide Web
NOYB: privacy in online social networks
Proceedings of the first workshop on Online social networks
Robust De-anonymization of Large Sparse Datasets
SP '08 Proceedings of the 2008 IEEE Symposium on Security and Privacy
FlyByNight: mitigating the privacy risks of social networking
Proceedings of the 7th ACM workshop on Privacy in the electronic society
Predicting tie strength with social media
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the 18th international conference on World wide web
Eight friends are enough: social graph approximation via public listings
Proceedings of the Second ACM EuroSys Workshop on Social Network Systems
De-anonymizing Social Networks
SP '09 Proceedings of the 2009 30th IEEE Symposium on Security and Privacy
FaceCloak: An Architecture for User Privacy on Social Networking Sites
CSE '09 Proceedings of the 2009 International Conference on Computational Science and Engineering - Volume 03
You are who you know: inferring user profiles in online social networks
Proceedings of the third ACM international conference on Web search and data mining
xBook: redesigning privacy control in social networking platforms
SSYM'09 Proceedings of the 18th conference on USENIX security symposium
Inferring privacy information from social networks
ISI'06 Proceedings of the 4th IEEE international conference on Intelligence and Security Informatics
Imagined communities: awareness, information sharing, and privacy on the facebook
PET'06 Proceedings of the 6th international conference on Privacy Enhancing Technologies
Detecting and resolving privacy conflicts for collaborative data sharing in online social networks
Proceedings of the 27th Annual Computer Security Applications Conference
The privacy in the time of the internet: secrecy vs transparency
Proceedings of the second ACM conference on Data and Application Security and Privacy
Proceedings of the 2013 conference on Internet measurement conference
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As the popularity of social networks expands, the information users expose to the public has potentially dangerous implications for individual privacy. While social networks allow users to restrict access to their personal data, there is currently no mechanism to enforce privacy concerns over content uploaded by other users. As group photos and stories are shared by friends and family, personal privacy goes beyond the discretion of what a user uploads about himself and becomes an issue of what every network participant reveals. In this paper, we examine how the lack of joint privacy controls over content can inadvertently reveal sensitive information about a user including preferences, relationships, conversations, and photos. Specifically, we analyze Facebook to identify scenarios where conflicting privacy settings between friends will reveal information that at least one user intended remain private. By aggregating the information exposed in this manner, we demonstrate how a user's private attributes can be inferred from simply being listed as a friend or mentioned in a story. To mitigate this threat, we show how Facebook's privacy model can be adapted to enforce multi-party privacy. We present a proof of concept application built into Facebook that automatically ensures mutually acceptable privacy restrictions are enforced on group content.