The economic security of the state is constantly affected by the phenomenon of the unobserved economy. The international community has developed international conventions and standards to combat the unobserved economy and the movement of illicit financial flows. However, insufficient law enforcement, inadequate compliance and high-risk countries can both have detrimental consequences, affecting the effectiveness of the whole prevention framework. The public institutions involved in reducing this phenomenon correlate its decisions with the economic-financial information accumulated, stored and managed in accordance with its statutory purposes. This requires the authorities to assess the role of the quality of information managed in its decision-making process. The purpose of the article is to identify the role of information quality accumulated by public institutions in the process of reducing the unobserved economy in the Republic of Moldova. As a result of the research, some gaps were found in the process of organizing the information management activity and some recommendations were developed.