Illegal gambling activities in Greece continue to pose serious challenges to the integrity of the country's betting market. The article explores how money flows through illicit betting operations, demonstrating the methods used to conceal financial transactions related to unauthorized gambling. Despite ongoing efforts by Greek regulatory authorities and law enforcement to curb these activities, underground betting persists, affecting the revenue and reputation of the lawful gambling sector. The complexity of tracking these transactions stems from their disguised nature and the use of multiple channels, making enforcement difficult. The article underscores the need for enhanced regulatory measures and cooperation to effectively limit illegal betting and protect consumers and legitimate businesses within Greece's gaming industry.