Which of the following would be the most effective fraud prevention control?

New hire training is a fundamental preventive control. It establishes an ethical tone and control consciousness from the outset, clearly communicating expectations regarding misconduct and the consequences of fraudulent actions. By influencing employee behavior and fostering a culture of integrity, it addresses the root causes of fraud, making it the most effective measure for prevention among the options. The other options are primarily detective controls, which identify fraudulent activities after they have occurred or as they are occurring.

A. This is a detective control. The email alert is triggered after a large check has already been issued, aiming to detect potential irregularities.
B. This is primarily a detective control used to investigate theft after it happens, though it can have a secondary deterrent (preventive) effect.
D. This is a detective control. The report identifies unauthorized access attempts after they have occurred, not preventing them in the first place.

1. COSO, Fraud Risk Management Guide, 2nd Edition (2023). Principle 2, "The board of directors exercises oversight of the fraud risk management program," emphasizes the importance of a strong ethical culture. The guide states, "A strong 'tone at the top' and throughout the organization is the foundation for all other components of fraud risk management... communicated through training and other means" (p. 21). This highlights training as a core preventive measure.

2. The Institute of Internal Auditors (IIA), International Professional Practices Framework (IPPF), Standard 2120: Risk Management. The standard requires internal audit to evaluate risk exposures, including the risk of fraud. The implementation guidance (2120.A1) notes that internal auditors should evaluate the potential for fraud and how the organization manages fraud risk. Preventive controls, such as training and creating a culture of ethics, are the first line of defense in managing this risk.

3. Albrecht, W. S., Albrecht, C. O., Albrecht, C. C., & Zimbelman, M. F. (2011). Fraud Examination. Cengage Learning. In academic literature on fraud, creating a culture of honesty and high ethics is consistently cited as the single most important element in fraud prevention. The text states, "The first and most important step in preventing fraud involves creating a culture of honesty and high ethics... This is done through... communicating expectations through a code of conduct and fraud awareness training" (Chapter 5, "Fraud Prevention").