Code Wars: Inside the Cyber Threat Cyber-criminals have brought the websites of the U.S. Department of the Treasury, the New York Stock Exchange, and the South Korean government to a halt. After hackers breached Sony’s PlayStation Network, the company reported that the personal information of 77 million of its customers – including their credit card data – was jeopardized. In China and Russia, cyber warriors are at the ready, poised to strike with the newest form of warfare, where conventional rules don’t apply.