Section: Volume D

Explanation/Reference:
Explanation:
If the costs of specific controls or countermeasures (control overhead) exceed the benefits of mitigating a given risk the enterprise may choose to accept the risk rather than incur the cost of mitigation. This is done according to the principle of proportionality described in:
Generally accepted security systems principles (GASSP)

Generally accepted information security principles (GAISP)

Incorrect Answers:
A: When the cost of specific controls exceed the benefits of mitigating a given risk, then controls are not applied, rather risk is being accepted.
B: As the cost of control exceeds the benefits of mitigating a given risk, hence no control should be applied.
Corrective control is a type of control and hence it should not be adopted.
D: The risk is being exploited when there is an opportunity, i.e., the risk is positive. But here in this case, negative risk exists as it needs mitigation. So, exploitation cannot be done.

Explanation/Reference:
Explanation:
As new technologies, products and services are introduced, compliance requirements become more complex and strict; business processes and related information flows change over time. These changes can often affect the efficiency and effectiveness of controls. Formerly effective controls become inefficient, redundant or obsolete and have to be removed or replaced.
Therefore, the monitoring process has to receive timely feedback from risk assessments and through key risk indicators (KRIs) to ensure an effective control life cycle.
Incorrect Answers:
B: Most of the time, the addition of controls results in degradation of the efficiency and profitability of a process without adding an equitable level of corresponding risk mitigation, hence better controls are adopted in place of adding more controls.
C: A BIA is a discovery process meant to uncover the inner workings of any process. It helps to identify about actual procedures, shortcuts, workarounds and the types of failure that may occur. It involves determining the purpose of the process, who performs the process and its output. It also involves determining the value of the process output to the enterprise.
D: Efficiency and effectiveness of controls are not affected by the changes in technology or product, so some measure should be taken.