Procurement documents released by the U.S. Air Force give a rare glimpse into Pentagon plans for developing an offensive cyber-war capacity that can infiltrate, steal data from and, if necessary, take down enemy information-technology networks. The Broad Area Announcement, posted ... by the Air Force Research Laboratory's Information Directorate, outlines a two-year, $11 million effort to develop capabilities to access ... any remotely located open or closed computer information systems," lurk on them "completely undetected," "stealthily exfiltrate information" from them and ultimately "be able to affect computer information systems through Deceive, Deny, Disrupt, Degrade, Destroy (D5) effects." "Of interest," the announcement says, "are any and all techniques to enable user and/or root-level access to both fixed [and] mobile computing platforms ... [and] methodologies to enable access to any and all operating systems, patch levels, applications and hardware." The announcement is the latest stage in the Air Force's effort to develop a cyber-war capability and establish itself as the service that delivers U.S. military power in cyberspace. Last year, the Air Force announced it was setting up a Cyberspace Command ... and was developing military doctrine for the prosecution of cyber-war operations. The developments highlight the murky legal territory on which the cyber-wars of the future will be fought. More important, because of the difficulties in identifying attackers and immediately quantifying damage from a cyber-attack, it can be hard to determine when such attacks constitute an act of war as opposed to crime or even vandalism.

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