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The Parkerian hexad is a set of six elements of information security proposed by Donn B. Parker in 1998 [1] [2].The Parkerian hexad adds three additional attributes to the three classic security attributes of the CIA triad (confidentiality, integrity, availability).
The CNSS holds discussions of policy issues, sets national policy, directions, operational procedures, and guidance for the information systems operated by the U.S. Government, its contractors or agents that either contain classified information, involve intelligence activities, involve cryptographic activities related to national security, involve command and control of military forces ...
The goal of information security is to ensure the confidentiality, integrity and availability (CIA) of assets from various threats. For example, a hacker might attack a system in order to steal credit card numbers by exploiting a vulnerability.
Information security is the practice of protecting information by mitigating information risks. It is part of information risk management. [1] It typically involves preventing or reducing the probability of unauthorized or inappropriate access to data or the unlawful use, disclosure, disruption, deletion, corruption, modification, inspection, recording, or devaluation of information.
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The McCumber Cube. The McCumber Cube is a model for establishing and evaluating information security (information assurance) programs.This security model, created in 1991 by John McCumber, is depicted as a three-dimensional Rubik's Cube-like grid.
The model is designed so that subjects may not corrupt data in a level ranked higher than the subject, or be corrupted by data from a lower level than the subject. In general the model was developed to address integrity as the core principle, which is the direct inverse of the Bell–LaPadula model which focuses on confidentiality.
The result can potentially compromise the confidentiality, integrity or availability properties of these resources (potentially different than the vulnerable one) of the organization and other involved parties (customers, suppliers). The so-called CIA triad is the basis of information security.