Keynote Paper.- Assuring Data Trustworthiness - Concepts and Research Challenges.- Privacy Protection.- On-the-Fly Hierarchies for Numerical Attributes in Data Anonymization.- eM2: An Efficient Member Migration Algorithm for Ensuring k-Anonymity and Mitigating Information Loss.- Constrained Anonymization of Production Data: A Constraint Satisfaction Problem Approach.- Privacy Preserving Event Driven Integration for Interoperating Social and Health Systems.- Data Security in Open Environments.- Joining Privately on Outsourced Data.- Computationally Efficient Searchable Symmetric Encryption.- Towards the Secure Modelling of OLAP Users’ Behaviour.- A Formal P3P Semantics for Composite Services.- A Geometric Approach for Efficient Licenses Validation in DRM.- Differentially Private Data Release through Multidimensional Partitioning.