2, fake crypto exchange; scammers have advanced to the level of creating fake crypto exchange, just to defraud people, that’s why we have to be very smart when using a exchange, we should make sure that we are trading on a reputable exchange, most newbies don’t care about the exchange which they are trading on, they believe all exchange are the same and most of those fake exchange provides bonuses which will encourage people to use there exchange, immediately you deposit to make withdrawal will be kind of difficult.
some of them will clone a crypto app on playstore, mostly there is always a little difference in the name, so you have to be very careful when downloading any app on playstore, most preferably make sure you get link that will direct you to the application on playstore from there official website. Sometimes people create a app that’s yet to be launched on playstore and they will launch it on playstore, anybody that download and input details on the app, your account will be hacked because they are already having access to your account. For example let’s assume binance exchange is just having web alone and they are yet to launch their app on playstore, someone might decided to design a app and they will launch it on playstore, any one that see it will think the app belongs to binance.
Fake crypto exchanges and fake gambling sites currently harm crypto users, always check the reputation of the gambling site or exchange you are using, this is very important because it is not easy to get money, so don't put your money on a fraudulent platform.
5; Ponzi scheme; Cryptocurrency is not a Ponzi scheme so we have to be very careful, scammers are everywhere asking people to invest in some sites and in few hours or few days, you will receive double of your investment, or huge return of your investment without any risk, all those investments are fake, we have to be very careful, the huge return in investment always encourage newbies to invest in it which at the end they endup losing all their money to ponzi and they will blame bitcoin or cryptocurrency for that.
sweet promises and that's what scammers always promise, big ROI in a short time is impossible, maybe at one or two times you receive the Reward as they promised but over time, it will change and, you will not receive it again (promise of reward) as they offered at the beginning, the ponzi scheme is a trick that has been there from the start, always pay attention to everything, don't fall into the trap of ponzi schemes.