The profile of fraudsters is similar to honest individuals. They are often people whom no one would suspect because they have a good reputation and the trust of their colleagues. Therefore, it is not enough to rely only on formal indicators, but it is also important to understand hidden psychological and behavioral aspects for timely detection and prevention. The fraud triangle, consisting of pressure, opportunity, and rationalization, provides a foundational framework for understanding why individuals might engage in fraudulent behavior. However, to fully grasp why and how fraud occurs, it's essential to delve deeper into the psychological and unconscious processes that influence behavior. Behavioral sciences offer a rich understanding of the various factors that influence individuals' susceptibility to fraud. By examining motivational, emotional, and cognitive processes, as well as the impact of socioeconomic factors, social norms, and environmental pressures, we can gain a more nuanced perspective on why and how fraud occurs. Likewise, nonverbal cues can reveal hidden intentions or emotions that verbal communication can mask. The correct interpretation of these signs helps to recognize potential fraudulent activities and to understand the people we work with on a daily basis.