Cracking down on spoofing has been a priority for prosecutors and the regulators since Congress outlawed it through the Dodd-Frank Act. Authorities are concerned that the practice has proliferated in the era of electronic trading, with market participants using computer algorithms to submit a high number of bogus orders. A court ruling last year paved the way for prosecutors to scrutinize trading going back a decade.

https://www.bloomberg.com/news/articles/2020-09-23/jpmorgan-is-set-to-pay-1-billion-in-record-spoofing-penalty?sref=dAQZajoP