Cyber Combat: Act of War
Pentagon Sets Stage for U.S. to Respond to Computer Sabotage With Military Force
Updated May 31, 2011 12:01 a.m. ET
WASHINGTON—The Pentagon has concluded that computer sabotage coming from another country can constitute an act of war, a finding that for the first time opens the door for the U.S. to respond using traditional military force.
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The Pentagon's first formal cyber strategy, unclassified portions of which are expected to become public next month, represents an early attempt to grapple with a changing world in which a hacker could pose as significant a threat to U.S. nuclear reactors, subways or pipelines as a hostile country's military.
In part, the Pentagon intends its plan as a warning to potential adversaries of the consequences of attacking the U.S. in this way. "If you shut down our power grid, maybe we will put a missile down one of your smokestacks," said a military official.
Recent attacks on the Pentagon's own systems—as well as the sabotaging of Iran's nuclear program via the Stuxnet computer worm—have given new urgency to U.S. efforts to develop a more formalized approach to cyber attacks. A key moment occurred in 2008, when at least one U.S. military computer system was penetrated. This weekend Lockheed Martin, a major military contractor, acknowledged that it had been the victim of an infiltration, while playing down its impact.
The report will also spark a debate over a range of sensitive issues the Pentagon left unaddressed, including whether the U.S. can ever be certain about an attack's origin, and how to define when computer sabotage is serious enough to constitute an act of war. These questions have already been a topic of dispute within the military.
One idea gaining momentum at the Pentagon is the notion of "equivalence." If a cyber attack produces the death, damage, destruction or high-level disruption that a traditional military attack would cause, then it would be a candidate for a "use of force" consideration, which could merit retaliation.
The Pentagon's document runs about 30 pages in its classified version and 12 pages in the unclassified one. It concludes that the Laws of Armed Conflict—derived from various treaties and customs that, over the years, have come to guide the conduct of war and proportionality of response—apply in cyberspace as in traditional warfare, according to three defense officials who have read the document. The document goes on to describe the Defense Department's dependence on information technology and why it must forge partnerships with other nations and private industry to protect infrastructure.
The strategy will also state the importance of synchronizing U.S. cyber-war doctrine with that of its allies, and will set out principles for new security policies. The North Atlantic Treaty Organization took an initial step last year when it decided that, in the event of a cyber attack on an ally, it would convene a group to "consult together" on the attacks, but they wouldn't be required to help each other respond. The group hasn't yet met to confer on a cyber incident.
Pentagon officials believe the most-sophisticated computer attacks require the resources of a government. For instance, the weapons used in a major technological assault, such as taking down a power grid, would likely have been developed with state support, Pentagon officials say.
The move to formalize the Pentagon's thinking was borne of the military's realization the U.S. has been slow to build up defenses against these kinds of attacks, even as civilian and military infrastructure has grown more dependent on the Internet. The military established a new command last year, headed by the director of the National Security Agency, to consolidate military network security and attack efforts.
The Pentagon itself was rattled by the 2008 attack, a breach significant enough that the Chairman of the Joint Chiefs briefed then-President George W. Bush. At the time, Pentagon officials said they believed the attack originated in Russia, although didn't say whether they believed the attacks were connected to the government. Russia has denied involvement.