An ever-evolving and rampant form of cybercrime that targets emails as the potential medium to conduct fraud is known as Business Email Compromise. BEC affects more than 70% of organizations worldwide and leads to the loss of billions of dollars every year. The Russian cyber gang Cosmic Lynx has been linked to conducting over 200 BEC campaigns since July 2019, targeting over 46 countries worldwide, focusing on giant MNCs that have a global presence. DMARC uses SPF and DKIM authentication standards to validate emails sent from your domain.
Source: https://thehackernews.com/2021/02/how-to-fight-business-email-compromise.html