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Which of the following security models allows for dynamically changing access controls that protect against conflicts of interest?
The Clark-Wilson model
Harrison-Ruzzow-Ullman model
Graham-Denning model
Brewer-Nash model
The correct response is Brewer and Nash model. In this model dynamically changed access controls protect against conflicts of interest. The Graham-Denning model creates rights for subjects which correlate to operations, Harrison-Ruzzow-Ullman model allows for access rights to be changed and specifies how subjects and objects should be created or deleted, and Clark-Wilson model uses access triple (subject, software, object), separation of duties, and auditing to enforce integrity.
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