Trust and Reputation Models

Reputation systems are a key success factor of many websites, enabling users and customers to have a better understanding of the information, products and services being provided. However, by using reputation systems, individuals place themselves at additional risk. This report studies privacy risks of in duty systems and surveys the current practice of reputation providers. Furthermore, it gives recommendations to service providers to improve their practice to mitigate risks for their customers and to policymakers to improve the legal framework on privacy and data protection to suit the needs of our modern communication society.