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Thresholds of Uncertainty: Collective Defense and Cybersecurity

Tuesday, June 11, 2013

Collective defense is a coordinated response to a common security problem by two or more countries. The core of collective defense is political: a commitment by different nations to come to each other’s aid if attacked. Existing collective security arrangements for the U.S. and its allies were designed for one kind of threat. Now they must deal with others, including new threats, if they are to remain relevant to national security. In particular, the U.S. and its allies agree that it would be useful to extend collective defense arrangements against potential cyberattacks, but implementation has proven difficult because of the operational aspects of cyberattack, the ways in which cyberwar will be waged, its limitations and effects, and what must be defended.

The targets of a cyberattack are an opponent’s computers. The attack must penetrate network defenses to insert a malicious program on the target device. These targeted devices do not always resemble personal computers, but could include special-purpose computers whose source of instruction and control is transmitted over a network. Special-purpose computers, which include industrial control systems used in critical infrastructures, are embedded in an expanding range of machinery and infrastructures, including advanced weapons that increasingly rely on software; the ability to disrupt their operations can produce an effect similar to that of a kinetic weapon. Physical disruption or destruction through a cyberattack has been rare, but several countries, including most leading military powers as well as nations like Iran, have acquired such capabilities. ...

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