Criminal activities, such as fraudulent financial reporting and misappropriation of assets; It is a widespread problem that companies around the world face. According to theoretical and empirical research, the most common technique used for fraudulent financial reporting involves the misuse of assets for personal gain, but on the contrary; Fraudulent financial reporting (although it often does not occur) will do the most damage. The main responsibility for preventing and detecting fraud lies with management. However, in addition to management, the board of directors, audit committees, internal auditors and independent auditors all have an important role and responsibility in the ability to rely on reliable financial statements. One of the important tasks of internal auditing is to provide effective assurance services and impartial review of evidence to independently evaluate the processes of corporate governance, internal controls and risk-based detection management to prevent fraud with the aim of minimizing it.