CEH Certified Ethical Hacker Cert Guide, 4th Edition

Chapter 1

An Introduction to Ethical Hacking

This chapter covers the following topics:

• Security Fundamentals: You need to understand the security triad—confidentiality, integrity, and availability—because it forms the basis on which all security is built.

• Security Testing: It is important to realize that ethical hackers differ from hackers in that ethical hackers perform activities only after obtaining written permission from the client that different types of tests can be performed.

• Hacker and Cracker Descriptions: Hackers can be known by many names. You should know these and what motivates various types of hacking attacks.

• Ethical Hackers: Ethical hackers perform security tests to strengthen the organization for which they work. You need ...