Definitions[edit | edit source]

System integrity is

[t]he quality that a system has when it performs its intended function in an unimpaired manner, free from unauthorized manipulation of the system, whether intentional or accidental.[1]
[t]he attribute of an information system when it performs its intended function in an unimpaired manner, free from deliberate or inadvertent unauthorized manipulation of the system.[2]
the ability to execute the correct instructions using the correct data. It is important to recognize that attacking the cyber subsystem can disrupt proper functioning of the physical subsystem(s) of the CPS or cause the system to function in accordance with an improper set of instructions.[3]

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