Yep, a friend of mine met a woman online who was supposedly living in a different city in the UK, and studying something very clever sounding. He went on and on about her and after a while I though, wow! She sounds amazing - I'd love to see a picture.
They were honestly the most obvious catfish pictures I've ever seen. She looked like a model, photoshopped into oblivion, in staged and posed photos (nothing that looked candid, no selfies). Very gently, I suggested doing a reverse image search. He did so and was incensed when it came up with the account of an Instagram model with hundreds of thousands of followers, based in Singapore.
But, bless him, he still thought she was just keeping things from him rather than catfishing him. "She obviously thinks I'd judge her for posing in skimpy outfits for other men" (and lol, he totally did).
Anyway, after a serious talk about being very careful about who you trust online, (while trying not to bruise his ego by saying "mate, look at her, don't be daft"), I thought he'd got the message.
A few weeks later he confessed that she'd somehow convinced him to go in on some crypto investment thingy. I honestly didn't understand it myself, but he found out lightening fast that it was a scam. He lost about £10k and was then genuinely confused when she stopped replying to him.
Whoever it was played the long game, as the relationship was built over several months and he really trusted her. He confided in her about family stuff, all sorts. Had some bonkers story to explain why she was studying biochemistry or whatever in the UK whilst also being a full time model in Singapore.
He was so lovestruck and then completely humiliated, poor thing. I tried.