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Online Authorization (OLA) is a system used to verify a transaction on a payment card (e.g. credit card). [1] The term 'on-line' refers to the real-time nature of the verification. In other words, if the account is overdrawn, in most cases, the transaction will be refused.
3-D Secure is a protocol designed to be an additional security layer for online credit and debit card transactions. The name refers to the "three domains" which interact using the protocol: the merchant/acquirer domain, the issuer domain, and the interoperability domain. [1]
In the beginning, the cashier pressed a special "food-stamp total" key, and the customer presented paper food stamps; today, the customer swipes an Electronic Benefit Transfer (EBT) card and selects the "food stamp" account, and the register charges only the food-stamp total to the EBT card. The remaining balance must be paid for by other means.
A merchant plug-in (MPI) is a software module designed to facilitate 3-D Secure verifications to help prevent credit card fraud. [1] The MPI identifies the account number and queries the servers of the card issuer (Visa, MasterCard, or JCB International) to determine if it is enrolled in a 3D-Secure program and returns the web site address of the issuer access control server (ACS) if it is ...
The typical network architecture for modern online payment systems is a chain of service providers, each providing unique value to the payment transaction, and each adding cost to the transaction: merchant, point-of-sale (PoS) software as a service (SaaS), aggregator, credit card network, and bank. The merchant can be a brick-and-mortar outlet ...
A high-risk merchant account is a business account or merchant account that allows the business to accept online payments though they are considered to be of high-risk nature by the banks and credit card processors. They will typically pay higher transactions fees if they are accepted at all.
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