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Definitions and Terminology
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Access control
The process that limits and controls access to resources of a computer system; a logical or physical control.
source: COBIT 4.0
prevention of unauthorized use of a resource, including the prevention of use of a resource in an unauthorized manner
source: ISO18028-2, 2006
Mechanisms that limit availability of information or information-processing resources only to authorized persons or applications.
source: PCI DSS, 2008
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