Online businesses are more prone to scams compared to offline business. Let’s say you sell the products but the buyer files charge backs. Or, you sell the product, but the buyer does not receive it and you still have to bear shipping cost. These are just few examples. Online sellers are under the risks of scams frequently. It is very important to mitigating these risks. One way to handle this is to communicate well with the customers before shipping products, and use payment methods that does not allow chargebacks. Also try to be cautious of fraudulent claims. You can also accept prepaid payment to avoid scams.