Definition

Not the furry tunnel-digger, but a spy who burrows deep into an organization to gather intelligence from within. This double agent plays the long game, establishing cover so convincing that even their own mother might forget which side they're really on. Named after the animal because both prefer working underground and ruining otherwise pristine landscapes.

Example Usage

The intelligence agency spent five years planting a mole in the rival organization, only to discover their mole had become genuinely confused about loyalties.

Source: Intelligence and espionage terminology

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