ABSTRACT
Network Security The Communication and Network Security domain encompasses the structures, transmission methods, transport formats, and security measures used to provide confidentiality, integrity, and availability for transmissions over private and public communications networks and media. Network security is often described as the cornerstone of IT security. The network is a central asset, if not the most central, in most IT environments. Loss of network assurance (the combined properties of confidentiality, integrity, availability, authentication, and non-repudiation) on any level can have devastating consequences, while control of the network provides an easy and consistent venue of attack. Conversely, a well-architected and well-protected network will stop many attacks in their tracks.
