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Employees, through intermediaries, are offering internal data to help merchants increase their sales on the website
Amazon.com Inc. is investigating internal leaks as it fights to root out fake reviews and other seller scams from its website.
Employees of Amazon, primarily with the aid of intermediaries, are offering internal data and other confidential information that can give an edge to independent merchants selling their products on the site, according to sellers who have been offered and purchased the data, as well as brokers who provide it and people familiar with internal investigations.