Well, in my own point of view, all business has risk, but base on the question above, there's this business popularly called POS in my country, the business is good but have a very risky sides, their main functions are to assist people to
Deposits
Withdraw
Transfer money to their various accounts, but because of how things are in the country, they are the number one targets of the thief's, because dey deal with raw cash, and they don't have any security, also 80% of this business is located at rural areas where banks are far from the masses, so thief's do attack them easily and go away with their money.
Another risk in the business is that any mistake when doing transfer will be somehow hard for you to get your money back.