Defend your network against a wide range of existing and emerging threats. Written by a Certified Information Systems Security Professional with more than 20 years of experience in the field, Network Security: A Beginner's Guide, Third Edition is fully updated to include the latest and most effective security strategies.

You'll learn about the four basic types of attacks, how hackers exploit them, and how to implement information security services to protect information and systems. Perimeter, monitoring, and encryption...