The president has the power to order pre-emptive strikes against possible digital attacks

The NYT reports on legal rules being developed dealing with cyber security:

A secret legal review on the use of America’s growing arsenal of cyberweapons has concluded that President Obama has the broad power to order a pre-emptive strike if the United States detects credible evidence of a major digital attack looming from abroad, according to officials involved in the review.

That decision is among several reached in recent months as the administration moves, in the next few weeks, to approve the nation’s first rules for how the military can defend, or retaliate, against a major cyberattack. New policies will also govern how the intelligence agencies can carry out searches of faraway computer networks for signs of potential attacks on the United States and, if the president approves, attack adversaries by injecting them with destructive code — even if there is no declared war.

. . . Cyberweaponry is the newest and perhaps most complex arms race under way. The Pentagon has created a new Cyber Command, and computer network warfare is one of the few parts of the military budget that is expected to grow. Officials said that the new cyberpolicies had been guided by a decade of evolution in counterterrorism policy, particularly on the division of authority between the military and the intelligence agencies in deploying cyberweapons. Officials spoke on condition of anonymity because they were not authorized to talk on the record.