Security is a major problem of the banking industry, which bases its whole system on the reputation the bank manages to establish and then maintain among its customers. With the manifestation of information security issues and in interdependence with them, the need for internal control also developed, both of them being associated with modern risk management practices. As the concept of internal control has been rising as a major concern of management and corporate governance, there are attempts to classify it and distinguish it in different categories, dual control being a result of this process. The authors of this study attempt to present the concept of dual control as it is currently applied in the banking system, trying to analyze contextually its capacities of fraud detection, its consequences in terms of risk and costs as well as its effects on bank performance.