plausible deniability

The ability to deny blame because evidence does not exist to confirm responsibility for an action. The lack of evidence makes the denial credible, or plausible. The use of the tactic implies forethought, such as intentionally setting up the conditions to plausibly avoid responsibility for one’s future actions.

The term was coined by the CIA in the 1960s to describe the withholding of information from senior officials in order to protect them from repercussions in the event that certain activities by the CIA became public.