Three men have been indicted for hacking into a number of cash registers at Dave & Buster's restaurant locations nationwide to steal data from thousands of credit and debit cards, data that was later sold or used to cause more than $600,000 in losses, the Justice Department said this week.

The government's 27-count indictment unsealed this week names Maksym "Maksik" Yastremskiy, of Kharkov, Ukraine, and Aleksandr "JonnyHell," Suvorov, of Sillamae, Estonia, with wire fraud conspiracy, wire fraud, conspiracy to possess unauthorized access devices, access device fraud, aggravated identity theft, conspiracy to commit computer fraud, computer fraud and counts of interception of electronic communications.

The government also unsealed a complaint against Albert "Segvec" Gonzalez of Miami, who, according to the U.S. Secret Service, was responsible for creating the software used to steal credit and debit card data.

The complaint alleges that sometime between April and September of 2007, Yastremskiy and Suvorov hacked into cash register terminals at 11 Dave & Buster's locations and installed Gonzalez's "sniffer" programs to steal payment data as it was being transmitted from the point-of-sale terminals to the company's corporate offices.

According to the government, Gonzalez wasn't that great of a programmer: His sniffer program contained a bug, which would fail to start each time an infected point-of-sale system was rebooted. The Justice Department says that Yastremskiy and Suvorov kept at it, and that their persistence paid off: At one restaurant location alone, the sniffer program captured data for approximately 5,000 credit and debit cards, data that was later resold to cyber thieves, who used the data to make fraudulent purchases.