Released 27 Aug 2020: The average financial sums that cyber criminals are asking following the use of business email compromise (BEC) scams has risen from $54,000 (Q1 2020) to $80,000 (Q2 2020) per attack according to a report published by The Anti-Phishing Working Group (APWG): https://docs.apwg.org/reports/apwg_trends_report_q2_2020.pdf
DMARC helps prevent initial compromise.