A confidence trick (synonyms include confidence scheme and scam) is an attempt to defraud a person or group after first gaining their confidence. A confidence artist (or con artist) is an individual, operating alone or in concert with others, who exploits characteristics of the human psyche such as dishonesty, honesty, vanity, compassion, credulity, irresponsibility, naïveté, or greed.
A confidence trick is also known as a con game, a con, a scam, a grift, a hustle, a bunko (or bunco), a swindle, a flimflam, a gaffle or a bamboozle. The intended victims are known as “marks”, “suckers”, or “gulls” (i.e., gullible). When accomplices are employed, they are known as shills.