Exposing Privacy Obligation Policies in Social Networking Sites

Paul Groth

Increasingly, web-based applications are created through the composition of multiple functional components provided by different institutions. These so called "mash-ups" are an effective means to rapidly develop new applications. However, when these mash-ups are embedded within social networking sites that aggregate and expose personal data, such as Facebook, MySpace, or LinkedIn, serious privacy issues arise because personal data can be transmitted outside the applications hosting institution. In this paper, we describe an initial architecture and implementation to address these privacy concerns through the exposure of privacy obligation policies to the user using a workflow-based representation of mash-ups.

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