Computer Security Technology and Principles
Alex Alexandrou · 2021
This chapter aims to understand computer security technology, its history, and evolution. It discusses the Central Intelligence Agency Triad Model and National Institute of Standards and Technology Standards for Security Categorization of Federal Information and Information Systems and explores the significance of identification, authentication, and authorization in computer security. Denial of service is an attack that occurs when a hacker makes computer resources inaccessible to its users. Since every computer device has an operational limit, the cybercriminal sends numerous requests to the target server, overloading it with traffic it cannot handle. A hacker exploits security vulnerability to take control of multiple computers and turns them into botnets or bots. The need for people to exchange data easily and securely became more important with the introduction of computers. An authentication protocol is a set of rules that exchanges authentication data between two or more entities, allowing them to operate securely with minimal effort.