
472 Networking Explained, Second Edition
2. OK, I’ll agree that security is important. Where do I start?
A challenge inherent to network security is determining the right level of security
required for proper control of system and network assets. This concept, known as threat
assessment, identifies the assets you have and who may attempt to access them. Organiza-
tions can best assess corporate network threats by using a structured approach. To illus-
trate, there are many threats to hardware (e.g., theft of computers or related equipment,
destruction of computer equipment), threats to software (e.g., viruses or software bugs,
software deletions from ...