Cyber attacks have disrupted computer users since the 1980s, and computer security experts predict that smart phones and other mobile devices will also be the target of cyber security threats in the future. Developed from the successful guide Springer author to Computer Security Foundation, this book can be accessed / references fully updated and enhanced with resources for students and tutors. Topics and features: check the physical security of computer hardware, networking, and digital data; introduce various forms of rogue software (or malware), discusses methods to prevent and defend against malware, and explain the choice of viruses, worms and Trojans in detail; investigate threats important for network security, and explore subjects authentication, spyware, and identity theft, discusses issues of privacy and trust in the online world, including children's privacy and security, including attachments which discusses the definition, meaning, and history of the term hacker, introducing language "l33t Speak", and provides detailed time virus; provide many exercises and examples throughout the text, in addition to term the terms used in this book; source of additional supply on the linked web sites, http://www.DavidSalomon.name/ , including an introduction to cryptography, and answers to exercises. Clearly and engagingly written, this book is a concise resource is ideal for undergraduate class on computer security.