Seattle federal prosecutors have uncovered a credit card hacking scheme that’s resulted in the arrest of three people, including California rapper Guerilla Black.

According to the Seattle Post Intelligence, the 33-year-old Los Angeles rapper, born Charles Tony Williamson, is accused of buying used credit card information, stolen by two other individuals. Co-conspirators David Benjamin Schrooten, 22, of the Netherlands, and Christopher A. Schroebel, 21, of Keedysville, Md., have already been indicted.

The credit cards in question were previously used at Seattle businesses. Prosecutors allege that Guerrilla Black stole over 27,257 credit card numbers netting at least $150,000.

Schroebel has already pleaded guilty to the charges against him.