This jargon-busting guide will give you a clear overview of the world of cyber security. Exploring everything from the human side to the technical and physical implications, this book takes you through the basics: how to keep secrets safe, how to stop people being manipulated and how to protect people, businesses and countries from those who wish to do harm. Featuring real-world case studies from companies such as Facebook, Google and the NHS, as well as fashion, entertainment, property and other industries, this book is packed with clear explanations, sound advice and practical exercises to help you understand and apply the principles of cyber security.