According to the Institute of Internal Auditors (IIA) guidance, organizations have the most influence over the "opportunity" aspect of the fraud triangle. The fraud triangle consists of three elements: pressure, opportunity, and rationalization. While pressure and rationalization are largely influenced by personal and external factors beyond the organization's direct control, opportunity refers to the circumstances that allow fraud to occur, which can be directly managed and controlled by the organization through internal controls, policies, and procedures. References: = IIA's "Managing the Business Risk of Fraud: A Practical Guide" and the IIA's Practice Guide on "Internal Audit's Role in Preventing and Detecting Fraud".