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Merchant & POS
Partial authorization lets an issuer approve part of the requested amount when the card lacks the full balance, with the rest paid another way. This post covers the technical, receipt, clearing, reconciliation, merchant and certification requirements for acquirers.
Payment Systems
In payment or cash withdrawal transactions, the TR QR Code is generated by the POS or ATM. The card issuing bank must build its systems to read and act on this code. Errors usually stem from mishandling the long and short QR code flows, which are explained here.
Security
An external network scan run every 3 months by an Approved Scanning Vendor authorized by card schemes such as MasterCard and Visa, required for PCI DSS compliance. It checks whether merchant systems are protected against external threats.
Security
Forgery in card payments means transactions made with card details without the cardholder's knowledge, or purchases with counterfeit or stolen cards. Merchants cannot eliminate fraud and chargeback risk, but they should aim to reduce it to reasonable levels.
Merchant & POS
Isbank, a leading player in accepting payments from abroad in Turkey, has started accepting Discover and Diners Club cards via an agreement with Discover Financial Services, making it the bank accepting the most card brands in the country.
Online & Authorization
A payment gateway is the high-security connection banks provide for purchases made with a credit or debit card. Learn how it is set up and why it protects cardholder data.
Payment Systems
Agentic Commerce Protocol (ACP) is a next-generation protocol that lets AI agents integrate directly into commercial processes such as payments, orders, refunds and subscriptions. This post explains how it works and what it offers businesses.
Online & Authorization
You press the pay button and the screen says the transaction failed. Behind that failure are checks on your balance and transaction security. This post explains how funds confirmation APIs work, where they apply, and the situation in Turkey's open banking.
Credit Card
American Express, Discover, Visa and Mastercard have started working together on an infrastructure that lets leading US e-commerce sites accept one-click payments, so shoppers no longer need to type in all their card details.
Merchant & POS
Samsung Pay decided to add new services: users in India will soon be able to apply for financial products such as loans and credit cards through Samsung Pay, in partnership with Paisabazaar.
HSM & Security
Non-face-to-face transactions in which the cardholder authorizes the merchant to store card data, and the merchant uses that stored data to carry out the transaction, are called Credential-on-File (CoF) transactions.
Credit Card
The term 'wallet' has many definitions in payments and fintech. In general, it refers to digital wallets (e-wallets) used in e-commerce, popular because they let users securely store payment information and pay easily.