1. Private Security Beyond Private Military and Security Companies: Exploring Diversity Within Private-public Collaborations and Its Consequences for Security Governance.- Part I: Privatization of Security: Terminology, Concepts and Theories.- 2. Contributions of Private Businesses to the Provision of Security in the EU: Beyond Public-Private Partnerships.- 3. Who am I? The Blurring of the Private Military and Security Company (PMSC) Category.- Part II: The Continuous Expansion of Security Privatization: Industry and Geographical Trends.- 4. Maritime Security and Transformations in Global Governance.- 5. Privatising Security in Finance: Measures Against the Money Threatening Society.- 6. The Role of For-Profit Actors in Implementing Targeted Sanctions: The case of the European Union.- 7. The New (Private) National Security: Social and Political Consequences of Securitization in the United States Post 9/11.- 8. The Sentinel and the Rebel: Multi-choice Policing in Burundi and the State-centered Approach of Security Sector Reform.- Part III: The Privatization of Security in an Expanding Digital World.- 9. Blurring Public and Private: Cybersecurity in the Age of Regulatory Capitalism.- 10. A Typology of Cybersecurity and Public-Private Partnerships in the Context of the European Union.- 11. Exploring the New Frontiers of Security Privatisation: Web-Based Social Networking Services and Their Challenging Contribution to Foster Security and Public Safety.- 12. Mitigation and Notification of Data Breaches in the European Union: Private Companies in the Driver's Seat of Cybersecurity?