the most frequent victims are those who are given tempting offers in a short time, such as big profits when making a deposit of a certain amount and they will get fixed profits within a few months... this scheme is usually not far from ponzi and this has claimed many victims... the guise of this fraud model is very diverse, and has even spread to telegram...
The point is, be careful when you spend money. When it looks attractive, then it could be bait for you.. while you are the fish... Don't be easily tempted by something instant, because money is not that easy to get for people who don't have the skills.