Only 10,5% of tech companies have properly implemented the DMARC email authentication protocol to block phishing attacks that use email spoofing according to a study conducted by anti-phishing company Valimail. 51% of all the 525 global technology companies examined have implemented DMARC, 3,6% have configured them incorrectly and 35% have it correctly set up but don’t use enforcement. Tech companies which use DMARC enforcement strategy had an average revenue more than twice that of the companies with no DMARC records at all ($10.2 billion vs. $5 billion)
Source: https://www.bleepingcomputer.com/news/security/only-10-percent-of-tech-companies-protected-from-phishing-by-dmarc-enforcement/