A whistleblower tipped-off the US Securities and Exchange Commission about a currency manipulation scheme at the Bank of New York. The bank was accused of giving pension funds less-than-desirable exchange rates, helping the bank make massive profits from the difference.

https://www.9news.com.au/world/usa-news-bny-mellon-whistleblower-gets-50-million-payout/d42ab9bf-94e6-4888-9ba8-d0bfbf6f5c78