Vast amounts of data and information in private or public sectors along with the personal information of the individuals are stored over these computers, most of which are highly sensitive. High dependency on the information systems, applications, and services is a clear sign that organizations are becoming more and more susceptible to security issues. Cyber attacks and computer safety are an important concern as highend vulnerabilities can endanger economies across the globe. lt has become essential to provide adequate security measures to safe guard sensitive information. Thus, awareness about the tools and techniques for securing information is mandatory. Computer and Cyber Security Principles, Algorithm, Applications, and Perspectives is a monumental reference for the theory and practice of computer security. Comprehensive in scope, it covers applied and practical elements, theory, and the reasons for the design of applications and security techniques. It covers both the management and the engineering issues of computer security. It provides excellent examples of ideas and mechanisms that demonstrate how disparate techniques and Principles are combined in widely-used systems. Computer and Cyber Security is noteworthy for its scope, clear and lucid writing, and its combination of formal and theoretical aspects with real systems, technologies, techniques, and policies.