This guide outlines the mechanisms of wire transfer fraud and provides strategies for organizations to mitigate risks associated with such scams. It explains how criminals execute wire fraud through various methods, including fraudulent vendor invoices, executive emails, payroll redirects, and impersonating parties in upcoming transactions. The document details how email is exploited by criminals to gather information for these scams and describes techniques used to spoof emails. Additionally, it presents actionable tips for preventing wire fraud, such as identifying high-risk processes, implementing out-of-band verification, and creating a culture of security within the organization. The guide emphasizes the importance of limiting publicly available information and suggests technical solutions like spam filtering, email configuration, data-loss prevention systems, and multifactor authentication to enhance security measures. By following these recommendations, organizations can better protect themselves against wire transfer fraud.