Other books on corporate security focus on hardware and software technology, and do not adequately cover the most serious threat of all: human deception. The purpose of this book, in contrast, is to help you understand how you, your coworkers, and others in your company are being manipulated, and the barriers you can erect to stop being victims. The book focuses mainly on the non-technical methods that hostile intruders use to steal information, compromise the integrity of information that is believed to be safe but isn't, or destroy company work product.