This book is for those of you looking to adding more skills to your arsenal. It touches upon all topics that an ethical hacker should know about and how to implement the skills of a professional hacker.The book will provide a brief history of ethical hacking. You will learn what ethical hacking means and how this term is different from general hacking. Hacking topics include physical threats as well as the non-physical threats in an organization that all skilled ethical hackers must understand.