Zero-day come arma segreta, da nascondere e in parte esibire. Swaggering in Cyberspace: Busting the Conventional Wisdom on Cyber Coercion <http://warontherocks.com/2016/06/swaggering-in-cyberspace-busting-the-conven...> Given increases in the ability and willingness of various actors to target a nation’s critical infrastructure, David Gompert and Hans Binnendijk have argued that the United States should use cyber operations to “amp up the power to coerce.” This is a reasonable objective, but it ignores the conventional wisdom about cyber coercion that says it doesn’t work. A major component of successful coercion is detailing the pain your enemy may endure. Communicating that capability in the cyber realm is likely to induce your enemy to “patch” the vulnerability you were hoping to exploit. How can actors ever coerce targets with cyber weapons if threatening them effectively neutralizes their utility? We propose one possible way of resolving this problem: selectively revealing an individual cyber tactic to your opponent. Exploiting the “perishable” nature of certain cyber weapons helps to address some of the problems with cyber coercion, though many problems will remain. This is true in at least three ways. First, it can reduce the uncertainty surrounding your capabilities by hinting at the breadth or depth of your remaining cyber arsenal. Second, because these weapons can be costly to develop, burning a tactic or vulnerability can serve as a “sunk cost” signal of resolve. Third, since some cyber weapons may be more damaging than others, the choice of which vulnerability to burn can communicate your level of interest in the dispute.