Network security - Wikipedia, the free encyclopedia
The terms network security and information security are often used interchangeably. ... Information security, however, explicitly focuses on protecting data resources from ...
en.wikipedia.org

Introduction to Network Security
A gentle introduction to the complex topic of network security. Geared especially toward those new to security, including end users and management.
www.interhack.net

Network Security - Main Page - Cisco Systems
Embedded network security helps your business quickly respond to emerging threats and collaborate with confidence.
www.cisco.com