How difficult is cyber deterrence? Some theorists argue that it is quite difficult. These skeptics make valid points; the domain of cyberspace does pose unique challenges for an effective deterrence strategy. But treating cyber deterrence only theoretically—that is, ignoring the geopolitical context in which cyber attacks occur—unintentionally exaggerates its difficulty. Cyber deterrence proves easier in practice than it seems to be in theory because cyber attacks are ultimately inseparable from the physical domain, where deterrence has a long-demonstrated record of success.
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