According to a memorandum cited by Reuters on September 29, citigroup has warned some employees to guard against fraud and unethical behavior, and is considering strengthening the review of suppliers to ensure the accuracy of the company's bills. Citigroup has been working to address its weaknesses in control and risk management. The memorandum states that citigroup has a zero-tolerance policy towards illegal and unethical behavior by employees, non-employees, and suppliers. Earlier, due to its failure to timely improve its internal control system, citigroup was fined $0.136 billion by regulatory institutions in July 2023. Citigroup is considering increasing supervision of outsourced work to ensure that suppliers' work is in line with the company's needs and that their wages are fair. The bank also requires employees to report any potential misconduct or violations of its policies, and will investigate any behavior suspected of misusing company resources for personal gain.