This document discusses ethical hacking and provides an overview of the topic. It begins with an introduction that explains ethical hacking involves discovering vulnerabilities from a hacker's perspective in order to better secure systems. The document then covers the history of hacking, different types of hacking (such as website, email, and network hacking), the definition of ethical hacking versus traditional black hat hacking, skills needed for ethical hacking, and some true incidents of past hacks. It concludes by emphasizing the importance of employing ethical hackers and providing basic security best practices.