Not just a defense problem So far there haven't been any confirmed incidents of classified information being sent out as a result of the Predator virus, but experts are reportedly struggling to remove the virus from the Predator computers. According to Richard Clarke, a top advisor to three presidents, the United States' computer networks are so vulnerable to attack that going to war against computer-savvy countries like China, North Korea, Iran, or Russia could result in a cyber attack that would crash the U.S. economic system.