the.com/con artist

means A swindler who gains your trust through charm or deception specifically in order to cheat you out of money or valuables.

from Short for 'confidence artist' or 'confidence man,' a term that emerged in 19th-century America — specifically tied to a famous 1849 New York case where a well-dressed swindler named William Thompson would approach strangers, chat them up, then ask, 'Have you confidence in me to trust me with your watch until tomorrow?' People, charmed, handed it over — and never saw it again. Newspapers dubbed him 'the Confidence Man,' and the phrase stuck as a label for anyone whose weapon is trust itself rather than force. 'Con' became shorthand soon after, and 'artist' was added to credit the skill involved — swindling well is, after all, a performance.