Fraud can have significant financial, legal, and reputational consequences for businesses, making it crucial to have effective fraud detection and deterrence resources. What are some of the most effective resources or tools companies and auditors can use to detect and prevent fraud? How can these resources be integrated into a company's risk management and control systems to enhance fraud prevention efforts? What are some key challenges companies face in implementing and using fraud detection and deterrence resources effectively, and how can these challenges be addressed?