Blackmail is coercion by using the threat of exposing evidence of wrongdoing. Extortion is coercion by the exertion of inappropriate leverage; for example a "protection racket" is a form of extortion whereby a criminal organization guarantees protection (often from itself) in return for payment.
Blackmail is coercion by using the threat of exposing evidence of wrongdoing. Extortion is coercion by the exertion of inappropriate leverage; for example a "protection racket" is a form of extortion whereby a criminal organization guarantees protection (often from itself) in return for payment.