When selecting a risk mitigation option, management should consider the cost of control implementation, as well as the benefits and residual risks. The cost of control implementation includes the direct costs of acquiring, installing, and maintaining the control, as well as the indirect costs of potential side effects, suchas reduced performance, increased complexity, or decreased user satisfaction. The cost of control implementation should be balanced with theexpected reduction in risk exposure and the alignment with the enterprise’s risk appetite and tolerance. The maturity of the enterprise architecture, the reliability of key performance indicators (KPIs), and the reliability of key risk indicators (KRIs) are relevant factors for risk identification and assessment, but not for risk response selection. References = Risk and Information Systems Control Study Manual, Chapter 4: Risk Response, page 149.