A data distortion by probability distribution
ACM Transactions on Database Systems (TODS)
On the Privacy Preserving Properties of Random Data Perturbation Techniques
ICDM '03 Proceedings of the Third IEEE International Conference on Data Mining
Revisiting the uniqueness of simple demographics in the US population
Proceedings of the 5th ACM workshop on Privacy in electronic society
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We propose COP, a client-side system for protecting children's online privacy and empowering parental control over children's information disclosure with little manual effort. COP is compliant with the Children's Online Privacy Protection Act (COPPA) in the United States and it implements acquisition of parental consent before any private information submitted online by children, e.g., registration to a Web service. Instead of restricting access to certain Web services or blocking sensitive data from websites, COP employs perturbation techniques over personal data with the goal of concealing the sensitive information while providing certain usability of the data to the websites. We address several challenges in the implementation of COP, e.g., perturbation of different types of data, parsing user input and retaining transparency to children without obstructing their normal Web surfing activities. We apply COP in registrations to 23 most popular websites. The results indicate COP's effectiveness as a privacy protection tool. We also discuss some potential security attacks against COP's design and provide our countermeasures.