In conditions of significant economic turbulence, growing competition and globalization of modern business, the problem of ensuring economic security is becoming one of the most significant for companies. Economic security involves protecting a business from internal and external threats that may negatively affect its financial stability, operations, and strategic development. One of the tools in achieving this goal is controlling, which is a management system aimed at ensuring the stable functioning of a business, preventing crisis situations and achieving strategic goals. Its use in the economic security system allows not only to identify threats in a timely manner, but also to develop measures to eliminate them, minimize risks and optimize the company's resources. The article reveals the essence and role of controlling in the system of ensuring the economic security of a business.