He said North Korea, Iran, Iraq and other nations are working on cyber-attack capabilities that threaten the U.S. military's increasing reliance on information systems. U.S. intelligence officials have said China has conducted military exercises involving information attacks.
China also is suspected of conducting some computer attacks on Taiwan's computer infrastructure.
Computer warfare could involve blocking the military's use of computers by introducing viruses or firing electromagnetic bursts to disrupt operations. Military commanders are more concerned about acting on falsely supplied computer information than having no information at all. Loss of computer access is less of a problem because those engaged in combat could rely instead on intuition or experience on the battlefield, he said. I think you'll see Iraq and Iran are interested in developing these capabilities. India and other technologically advanced countries, while not in the same category, also could carry out information warfare, he said.