Which of the following should be the MOST important consideration when determining controls necessary for a highly critical information system?
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A. B. C. D.A.
When determining controls for a highly critical information system, the most important consideration should be the level of acceptable risk to the organization.
Option B is the correct answer because it is essential to evaluate the risks associated with the information system and determine the level of acceptable risk to the organization before implementing any controls. The organization should first identify the potential risks associated with the system, such as the possibility of unauthorized access or loss of data, and then evaluate the potential impact of those risks on the organization's mission and objectives.
Once the risks are identified and evaluated, the organization can then determine the appropriate controls necessary to mitigate those risks and ensure that the system operates securely and reliably. The level of acceptable risk will vary based on the organization's risk tolerance, which is influenced by several factors, including the nature of the system, the organization's mission, and its legal and regulatory requirements.
While options A, C, and D may be relevant factors in determining controls, they are not the most important considerations. The number of vulnerabilities, threats, and available budget are all important factors to consider, but they should be evaluated in the context of the organization's risk tolerance and the potential impact of the risks on the organization's mission and objectives.
Therefore, option B, the level of acceptable risk to the organization, should be the most important consideration when determining controls necessary for a highly critical information system.