A Dutch citizen appeared in court in Seattle last week as part of a 14-count indictment on charges that included marketing and selling stolen credit card numbers.

Charges against David Schrooten, who was arrested in March in Romania, included conspiracy, bank fraud, and aggravated identity theft, according to astatementissued by the United States Department of Justice. The statement said he marketed and tried to sell at least 44,000 credit card numbers. Schrooten pleaded not guilty.

Schrooten worked with co-conspirator Christopher Schroebel, of Maryland, to sell the stolen data online, according to the statement. Schroebel hacked intopoint-of-salecomputers at two Seattle area businesses, it said, including a restaurant and a restaurant supply store. He inserted malicious code into the computers in order to steal the information, which was then sent to a server controlled by Schroebel.

Schroebel was arrested in November 2011 and pleaded guilty last month; he is scheduled to be sentenced in August, 2012. The charges against Schrooten are only allegations, the statement notes, until they are proven in a court of law.

Schrooten was apprehended through a collaborative effort between the U.S. Attorney’s Office for the Western District of Washington, the U.S. Secret Service, and the Seattle Police Department. The U.S. Marshals Service helped extradite Schrooten from Romania.