This paper discusses financial intelligence’s ethical and legal considerations and explores the potential for misuse within Financial Intelligence Units (FIUs). More in detail, it examines the handling of information by FIUs from a legal perspective while also analysing how the structure of FIUs could allow for undue political influence under certain conditions. As a consequence, the structures designated to prevent or detect financial crimes could become part of the adverse circle instead of fighting it. Understanding the extent to which this process could lead to detrimental effects is the primary focus of the present paper. The study begins by outlining the characteristics of FIUs. It then analyses the ethical and legal implications associated with their operations, emphasising the risks of misuse. The paper then shifts its focus to corrupt environments with a detailed examination of Argentina’s case. The final section draws conclusions based on the preceding analysis and discussions.