For a fee of $200 to $400, sellers can pay for services like "Amazon Magic," as one broker on encrypted messaging service Telegram calls it. The Telegram group has over 13,000 members, and it's far from the only one. A public Facebook page identified by CNBC offers an internal screenshot service with "valuable insight into your seller account, allowing you to see how Amazon employees view your account and its performance." Account annotations, internal notes from an Amazon staffer on a seller's account, were among the confidential data being exchanged between the defendants and employees. The Amazon Magic group on Telegram is public, with users advertising black hat services almost daily.

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Persons: Johnny Milano, Christy Distefano, Remi Vaughn Organizations: Bloomberg, Getty, Telegram, Facebook Groups, Walmart, CNBC, Facebook, Amazon ., LinkedIn, Amazon, Street Journal, Department of Justice, FBI Locations: Melville , New York, China, India, Costa Rica, Ukraine