Enforcing segregation of duties between the vendor master file and invoicing is the best process control to mitigate the risk of an employee issuing fraudulent payments to a vendor. This is because segregation of duties is a key internal control that prevents or detects errors, fraud, orabuse by ensuring that no single person can perform incompatible or conflicting tasks. The vendor master file is a database that contains the information and settings for each vendor, such as name, address, bank account, payment terms, etc. Invoicing is the process of generating and sending bills to the vendors for the goods or services they provide. If the same person can access and modify the vendor master file and issue invoices, he or she could create fictitious vendors, alter vendor information, or generate false or duplicate invoices, and then divert the payments to his or her own account. By segregating these duties, the organization can reduce the opportunity and likelihood of such fraudulent activities. According to the CRISC Review Manual 2022, segregation of duties is one of the key IT control objectives and practices1. According to the web search results, segregation of duties between the vendor master file and invoicing is a common and recommended control to prevent vendor fraud