Regarding the financial functions in enterprise management, the importance of legal compliance must be emphasized. The purpose of the existence of the company's financial system is to ensure the transparency of corporate operations and the safety of funds. Any use of authority for personal gain is a serious illegal act and will definitely be subject to legal sanctions. For business managers, they should focus on the following legal preventive measures： 1. **Establish a triple approval mechanism**-Major capital flows need to be independently audited by the three parties of business, finance and audit 2. **Implement a job separation system**-Accounting and cashier positions must be strictly separated, and approval and execution authority must be separated 3. **Perfect electronic marking system**-All financial operations need to be marked in the ERP system and backed up regularly 4. **Strengthen the frequency of internal audits**-Conduct unannounced audits every quarter, focusing on abnormal capital flows 5. ** Establish a whistle-blower protection system**-Set up an independent monitoring channel to protect the right of employees to supervise Research by Transparency International, an international anti-corruption organization, shows that companies that implement the above measures can reduce the risk of financial fraud by 73%. Business managers should pay more attention to how to improve financial transparency through technological innovation (such as blockchain ledger), rather than seeking institutional loopholes. If you find suspicious financial operations, it is recommended to contact the company's supervision department immediately or report the case to the local economic investigation authority. Maintaining the financial security of an enterprise is the legal responsibility of every manager.