Chapter 1. Introduction to Security

This chapter covers the following subjects: Security 101—School is in session. This section discusses some of the basic principles of security such as CIA and AAA, some basic threats, and various ways to mitigate those threats. Think Like a Hacker—To know your enemy, you must think like them. Sometimes the hacker is your enemy, sometimes not. This section describes the various hats worn in the hacker society.

Welcome! Before we launch into heavy-duty security, I’d like to go over some foundation-level security concepts. I recommend that everyone read this chapter, but if you are a seasoned professional, you might opt to scan or skip it. For those of you new to the IT security field, this chapter (and the rest of the book) will act as the basis of your IT sleuthing career.