~ Most nigerian people do scam jobs
Like the prince who cannot withdraw their money from the bank?
On a serious note, you don't have to mention any race as scammers are all over the world.
When it comes to the worst scams, forcing sudden KYC to access your account and withdraw funds. Another would be closing of exchange account for whatever reason. I don't know if you can also count listening to some
experts and buying their picks that went down the grave as part of that.