Cisco® Secure Internet Security Solutions

Annex B: Network Security Primer

This annex is a network security primer.

The Need for Network Security

The Internet is changing the way we work, live, play, and learn. These changes are occurring both in the ways that we currently experience (e-commerce, real-time information access, e-learning, expanded communication options, and so forth) and in ways we have yet to experience. Imagine a day when your enterprise can make all of its telephone calls over the Internet for free. Or perhaps on a more personal note, consider logging on to a day-care provider's web site to check how your child is doing throughout the day. As a society, we are just beginning to unlock the potential of the Internet. But with the Internet's unparalleled growth comes ...