I'm not sure if your aware, but in American English, "con artist" is another term for a scammer. Someone who does "cons", short for "confidence tricks" (or "confidence schemes") where you gain someone's confidence in order to take advantage of them in some way, usually financial fraud.

Yes I'm aware, I grew up in a college town in rural Pennsylvania. I chose the name when I signed up for Neopets uhhhh 20 years ago now.