Reflecting the latest developments from the information security field, best-selling Security+ Guide to Network Security Fundamentals, 4e provides the most current coverage available while thoroughly preparing readers for the CompTIA Security+ SY0-301 certification exam. Its comprehensive introduction to practical network and computer security covers all of the the new CompTIA Security+ exam objectives. Cutting-edge coverage of the new edition includes virtualization, mobile devices, and other trends, as well as new topics such as psychological approaches to social engineering attacks, Web app.