Information Security for Managers

Network Security

CHAPTER 15

NOW THAT WE HAVE A FOOTING IN NETWORKS from the previous section, we will discuss key issues in securing them. Network security is one of the primary defenses against an information system (IS) attack. Managers involved with information technology along with network administrators need to understand the kinds of threats that can be posed against network infrastructure and the information assets they interconnect. Important features of a secure network include ensuring redundancies and avoiding single points of failure, creating filters and choke points throughout the network fabric, utilizing data hiding techniques such as tunneling and virtual private networks (VPNs), and using cryptography and digital signatures. ...