The Basics of Security

In this module, we’ll introduce you to the fundamentals of security. These are the basics that every security person should be familiar with, particularly early in their career before progressing on to more advanced knowledge and studies. We’re going to cover a lot of definitions and concepts in this module to give you a solid look at the foundations of security. Most of the topics we discuss here will be discussed repeatedly throughout the book, as they relate to everything we do in security, including advanced tasks and functions, and security technologies.

A few decades ago, the primary security concern was protecting equipment, facilities, and people. To a large degree, this involved physical security, since ...

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