309821
It was exposed for $ 1.4 billion , which it had placed with Madoff 's securities fund , as in the Madoff Ponzi scheme .
 Madoff, Madoff
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Madoff, Madoff