Accountability in Cloud Service Provision Ecosystems -- Information Management and Data Privacy -- Information Classification Issues -- DEICS: Data Erasure in Concurrent Software -- A Practical Analysis of Oblivious Sorting Algorithms for Secure Multi-party Computation -- Cloud, Big Data and Virtualization Security -- Security of OS-Level Virtualization Technologies -- Processing Private Queries over an Obfuscated Database Using Hidden Vector Encryption -- (Ss(B-Cipher: Authenticated Encryption for Big Data -- What Would it Take for You to Tell Your Secrets to a Cloud? - Studying Decision Factors When Disclosing Information to Cloud Services -- Network Security and Logging -- Efficient Record-Level Keyless Signatures for Audit Logs -- Static Semantics of Secret Channel Abstractions -- Browser Randomisation against Fingerprinting: A Quantitative Information Flow Approach -- Attacks and Defenses -- Attacker Profiling in Quantitative Security Assessment Based on Attack Trees -- Denial-of-Service Mitigation for Internet Services -- Spook in Your Network: Attacking an SDN with a Compromised OpenFlow Switch -- Security in Healthcare and Biometrics -- Patients' Privacy Protection against Insurance Companies in eHealth Systems -- Segmentation and Normalization of Human Ears Using Cascaded Pose Regression -- Poster Papers -- Dynamic Enforcement of Dynamic Policies -- Availability by Design -- Pareto Efficient Solutions of Attack Trees -- Verification of Stateful Protocols: Set-Based Abstractions in the Applied (Ss(B-Calculus -- Improvement Proposal for the CryptoCloak Application -- Process Tracking for Forensic Readiness -- Computationally Analyzing the ISO 9798-2.4 Authentication Protocol -- Differential Privacy and Private Bayesian Inference -- Event Invitations in Privacy-Preserving DOSNs: Formalization and Protocol Design -- Attacks on Privacy-Preserving Biometric Authentication.

This book constitutes the proceedings of the 19th Nordic Conference on Secure IT Systems, held in Troms�, Norway, in October 2014. The 15 full papers presented in this volume were carefully reviewed and selected from 42 submissions. They are organized in topical sections named: information management and data privacy; cloud, big data and virtualization security; network security and logging; attacks and defenses; and security in healthcare and biometrics. The volume also contains one full-paper invited talk.