This chapter discusses how organizations can fight fraud through prevention, detection, investigation, and legal action. It emphasizes that prevention is the most effective way to reduce fraud losses. Key aspects of prevention include creating a culture of honesty through leadership and ethics training, hiring ethical employees, and assessing fraud risks to implement controls. Detection methods include monitoring for red flags, audits, and whistleblower hotlines. Investigations require evidence gathering and following proper procedures. Once fraud is discovered, organizations can choose to take no legal action, pursue civil remedies, or criminal charges.