Hand keyed transactions
A hand keyed transaction usually occurs when the purchaser isn't physically present at the time of purchase. However, it can happen with in-person transactions if you allow an unauthorised person to hand key a credit card number.
Some common indicators of fraud to look out for are:
Payments to a 3rd Party: This is when a customer offers surplus funds to cover the cost of a fake 3rd party, such a freight or logistics courier. The expectation is that the merchant will forward these funds (often via Western Union or bank account details) on behalf of the customer. This way the customer can obtain funds from the stolen card data by channelling it via a merchant’s facility.
Multiple card details: When a customer offers multiple card details or has multiple declines occur within a short period of time.
High risk locations: Extreme caution should be used when sending goods to, or dealing with customers in the following locations which are generally considered to be high risk; Ghana, Nigeria, Ivory Coast (Western Africa in general), as well as Indonesia and Singapore.