We've all heard how credit cards can be used to track people's whereabouts, so we can naturally assume there are benefits to using them for gaming or other virtual payments. Many important pieces of information can be learned from one simple online purchase. And there are many methods of gaining this info from a transaction including: placing a user based on IP address, browser language, Bank Identification Number, or even their telephone number.
How can one transaction inform us about a user so well and what can it teach us, in regards to safety and information? Let's discuss how each route informs the geolocation of a user separately. Each characteristic of geolocation identification can also serve differing functions ranging from fraud protection to customization.
The approach used also varies: we can be simply comparing payment details to geolocation information, or investigating into the reasons behind differences (if there are any). For example, when a player who has been paying for many years from the USA suddenly makes a payment from China, we immediately check what's going on.