medium
Single Answer
0Kimon is the security administrator for a consulting firm and must enforce access controls that restrict users' access based upon their previous activity. For example, once a consultant accesses data belonging to Acme Cola, a consulting client, they may no longer access data belonging to any of Acme's competitors. What security model best fits Kimon's needs?
Answer Options
A
Clark-Wilson
B
Biba
C
Bell-LaPadula
D
Brewer-Nash
Correct Answer: D
Explanation
The Brewer-Nash model allows access controls to change dynamically based upon a user's actions. It is often used in environments like Kimon's to implement a “Chinese wall” between data belonging to different clients.