Harry M. Markopolos (born October 22, 1956) is an American former securities industry executive and an independent forensic accounting and financial fraud investigator. He discovered evidence over nine years suggesting that Bernard Madoff's wealth management business, Bernard L. Madoff Investment Securities LLC, was actually a massive Ponzi scheme. In 2000, 2001, and 2005, Markopolos alerted the U.S. Securities and Exchange Commission (SEC) of the fraud, supplying supporting documents, but each time, the SEC ignored him or only gave his evidence a cursory investigation. Wikipedia
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