Maintaining Network Control

Computers are often part of a configuration of systems called a network. A network allows connected systems to exchange information and access data and other resources that are available from systems connected to the network. Networking has created a powerful and sophisticated way of computing. However, networking has also jeopardized computer security.

For instance, within a network of computers, individual systems are open to allow sharing of information. Also, because many people have access to the network, there is more chance for allowing unwanted access, especially through user error (for example, through a poor use of passwords).