Security Boundaries A security boundary is the line of separation between two areas, subnets, or environments with differing security requirements....

Defense in Depth Defense in depth, also known as layering, is the practice of using multiple security controls in a...

The five core elements of security—Identification, Authentication, Authorization, Auditing, and Accountability (AAA)—represent the processes that ensure the secure access and...

An interesting security concept is the DAD Triad, which represents the failures of the CIA Triad. The DAD Triad consists...

Security management concepts and principles are inherent elements in a security policy and solution deployment. These concepts define the basic...