 Gonzalez and his cohorts targeted large companies and studied their check out terminals and then attacked the companies from internet-connected computers in New Jersey, Illinois, Latvia, the Netherlands and Ukraine.They covered their attacks over the Internet using more than one messaging screen name, storing data related to their attacks on multiple Hacking Platforms, disabling programs that logged inbound and outbound traffic over the Hacking Platforms, and disguising, through the use of proxies, the Internet Protocol addresses from which their attacks originated.The indictment said the hackers tested their program against 20 anti virus programs.