Skill or cunning used to oppose or counteract another's trickery or schemes; strategic deception employed against deception.
From counter- (against) plus craft (from Old English cræft meaning 'skill, strength, or cunning'). Describes strategic intelligence and tactical cleverness.
In espionage, countercraft is literally how you catch spies—fighting cunning with cunning! It's why intelligence agencies need people who can out-think adversaries.
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