According to the [indictment][1], they violated [18 USC § 1343][2], when they:

  participated in a scheme to deprive
  Coinbase of its exclusive use of
  confidential business information
  related to Coinbase's plans to list
  certain crypto assets on its exchanges

[1]: https://www.justice.gov/usao-sdny/press-release/file/1521186... [2]: https://www.law.cornell.edu/uscode/text/18/1343