Attributes Enhanced Role-Based Access Control -- Ontology-Based Delegation of Access Control: An Enhancement to the XACML Delegation Profile -- VISIO: a Visual Approach for Singularity Detection in Recommendation Systems -- Hidden in Plain Sight: SDP-based Covert Channel for Botnet Communication -- The Design of a Configurable Reputation Service -- Attacking GSM Networks as a Script Kiddie Using Commodity Hardware and Software -- On the Efficacy of Static Features to Detect Malicious Applications in Android -- Protecting Android Apps against Reverse Engineering by the Use of the Native Code -- Designing Privacy-Aware Systems in the Cloud -- Accountability-Preserving Anonymous Delivery of Cloud Services -- Till All Are One: Towards a Unified Cloud IDS -- Security, Privacy and Usability - A Survey of Users' Perceptions and Attitudes -- Identifying Factors that Influence Employees' Security Behavior for Enhancing ISP Compliance -- Dynamic Deployment and Monitoring of Security Policies -- A Taxonomy of Requirements for the Privacy Goal Transparency -- A Privacy Preserving Framework for Big Data in e-Government Environments -- Privacy Principles: Towards a Common Privacy Audit Methodology.