I have hands on experience with, what I'd call at least attempted fraud, with crypto. Back when Sweden thought about state backed crypto, a lot of ads showed up where you could invest in that. I almost did, call centers used Austrian numbers. Not sure if there was even any coin behind that. I reported it to police, got a letter after a couple of months that the investigation led nowhere and was dropped, apparently Austrian authorities did find anything on the reported number.
A couple of hours online found
- the company behind that operated out of the UK
- the call center was not in Austria but used local numbers for a while
- company was known for that shady business but never even got a slap on the wrist
I decided to never count on authorities for that kind of fraud. Or report it, because that's just a waste of time, unless you lost a shitload of money.