Always worth reading:
The World's Largest Hedge Fund is a Fraud [PDF] Nov 7, 2005 Submission to the SEC - Harry Markopolos
https://www.math.nyu.edu/faculty/avellane/madoffmarkopoulos....
The World's Largest Hedge Fund is a Fraud [PDF] Nov 7, 2005 Submission to the SEC - Harry Markopolos
https://www.math.nyu.edu/faculty/avellane/madoffmarkopoulos....
On the other hand, there were some conflict of interest issues - I am not sure what the exact issue was.
But on the whole, the issue seems to have disappeared with the great Covid bust-boom of the stock market.
"Scenario #2 (Highly Likely) Madoff Securities is the world's largest Ponzi scheme"