Hello, the payment system is a service for authorization and processing of payments made by means of debit/credit cards. During the payment processing process, all data is encrypted and protected by the system protocols, which ensures the security of the purchase process between the seller and buyers. Payment systems can perform various types of transactions: authorization, sale, refund, cancellation, etc. Visit
https://payadmit.com/features/sell-digital-products/ to read information about one of the most efficient payment systems for business.