What Is Information Assurance, How Does It Relate to Information Security, and Why Are Both Needed?

This chapter explains what information assurance (IA) is, how it relates to information security, and why both are needed. To begin, IA is defined in terms of what it involves and what it accomplishes. Next, the application and technology domains in which information security/IA should be implemented are explored. Finally, the benefit of information security/IA to individuals and organizations is illustrated from the perspective of the different stakeholders. The interaction between information security/IA and infrastructure systems is illustrated throughout the chapter.