This book constitutes the refereed proceedings of the 8th IFIP WG 11.11 International Conference on Trust Management, IFIPTM 2014, held in Singapore, in July 2014. The papers cover a wide range of topics focusing on the following main areas: trust and reputation models; trust under attacks and trust in the cloud environment.

The Importance of Trust in Computer Security.- Trust MUSE: A Model-Driven Approach for Trust Management.- Reusability for Trust and Reputation Systems.- On Robustness of Trust Systems.- Design of Intrusion Sensitivity-Based Trust Management Model for Collaborative Intrusion Detection Networks.- Exploiting Trust and Distrust Information to Combat Sybil Attack in Online Social Networks.- Anomaly Detection for Mobile Device Comfort.- Improving the Exchange of Lessons Learned in Security Incident Reports: Case Studies in the Privacy of Electronic Patient Records.- A Privacy Risk Model for Trajectory Data.- Providing Trustworthy Advice Online: An Exploratory Study on the Potential of Discursive Psychology in Trust Research.- Extending Trust Management with Cooperation Incentives: Achieving Collaborative Wi-Fi Sharing Using Trust Transfer to Stimulate Cooperative Behaviours.- A Calculus for Trust and Reputation Systems.- Knots Maintenance for Optimal Management of Trust Relations.- On the Tradeoff among Trust, Privacy, and Cost in Incentive-Based Networks.- Reputation-Based Cooperation in the Clouds.- Introducing Patient and Dentist Profiling and Crowdsourcing to Improve Trust in Dental Care Recommendation Systems.- Abstract Accountability Language.- Trust Assessment Using Cloud Broker.