"U.S. companies that have their networks routinely penetrated and their trade secrets stolen cannot be surprised by a new National Intelligence Estimate on the cyber-espionage threat. The classified NIE, the first-ever focusing on cybersecurity, concludes that the U.S. is the target of a major espionage campaign, with China the leading culprit."

"Private firms and government agencies have struggled with cyberattacks from China and other countries for years. Many are angry about the constant intrusions into their networks, and in frustration some want to turn the tables on their attackers."

"'There is no way that we are going to win the cybersecurity effort on defense,' says Steven Chabinsky, formerly the FBI's top cyber-attorney. 'We have to go on the offensive.'"