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Cy b e r Se C u r i t y
Fu n d a m e n t a l S
1.1 Network and Security Concepts
1.1.1 Information Assurance Fundamentals
Authentication, authorization, and nonrepudiation are tools that
system designers can use to maintain system security with respect
to confidentiality, integrity, and availability. Understanding each of
these six concepts and how they relate to one another helps security
professionals design and implement secure systems. Each component
is critical to overall security, with the failure of any one component
resulting in potential system compromise.
ere are three key concepts, known as the CIA triad, which any-
one who protects an information system must understand: confidenti-
ality, integrity, and availability. Information ...