Information security must protect information throughout the life span of the information, from the initial creation of the information on through to the final disposal of the information. The information must be protected while in motion and while at rest. During its lifetime, information may pass through many different information processing systems and through many different parts of information processing systems. There are many different ways the information and information systems can be threatened. To fully protect the information during its lifetime, each component of the information processing system must have its own protection mechanisms. The building up, layering on and overlapping of security measures is called defense in depth. In contrast to a metal chain, which is famously only as strong as its weakest link, the defense-in-depth aims at a structure where, should one defensive measure fail, other measures will continue to provide protection.
This is the most advanced program in network intrusion detection where you will learn practical hands-on intrusion detection methods and traffic analysis from top practitioners/authors in the field. All of the course material is either new or just updated to reflect the latest attack patterns. This series is jam-packed with network traces and analysis tips. The emphasis of this course is on increasing students' understanding of the workings of TCP/IP, methods of network traffic analysis, and one specific network intrusion detection system - Snort. This course is not a comparison or demonstration of multiple NIDS. Instead, the knowledge/information provided here allows students to better understand the qualities that go into a sound NIDS and the "whys" behind them, and thus, to be better equipped to make a wise selection for their site's particular needs. View Full Course Description