Rosenberg, 48, is a well-known figure in the world of Amazon third-party sellers. The case provides an unfiltered glimpse into the cottage industry of consultants and brokers that has flourished alongside the growth of Amazon's third-party marketplace. A former Amazon employee was sentenced last year to 10 months in prison, while a consultant who also sold products on Amazon is serving 20 months in prison. In one case, Rosenberg made 33 different PayPal payments worth $18,650 to an Amazon employee in Seattle in exchange for confidential information about third-party seller accounts. He later admitted he made false statements about the case and admitted to bribing Amazon employees in a public apology posted online.

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Persons: Ephraim, Ed, Rosenberg, it's, scammers, Joe Nilsen, Sellers, Nilsen, Rosenberg's, Jacob Laufer Organizations: Facebook, Amazon, Street Journal, Prosecutors, Seattle, Bloomberg, CNBC Locations: Brooklyn, China, Seattle