Foundations of Cybersecurity

This chapter starts with a brief overview about historical events in the evolution of the most important part of the cyberspace—the Internet. In the second subchapter, the importance and common understanding of cybersecurity are explained. Then, the cybersecurity principles, which define general protection goals, are described. The most important principles, also called primary principles, are confidentiality, integrity and availability. In addition, more specific principles can be defined—the extended principles, like access control, regularity, legal certainty, authenticity, non-contestability, traceability, non-repudiation, accountability and reliability. In the third subchapter, the appropriateness of the protection level in cybersecurity is shown to provide a basic understanding about the common characteristics of good safeguards. In the fourth subchapter, the determination and limitation of the protection scope are illustrated. In the fifth subchapter, the stakeholders of cybersecurity are described in order to show the influences of different stakeholder interests to the cybersecurity of a company. The stakeholder analysis is a technique that helps to make relationships and influence factors of stakeholders transparent.