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Payment Systems
Know Your Customer, in short, means identifying your customer. The process by which institutions identify their customers and determine their suitability for a business relationship and the risks they may pose is called KYC.
Credit Card
The service code is information printed on a card's Track 1 and Track 2 data, covering card type, PIN usage, and domestic/international usage status. It is kept at the product level in bank systems.
ISO 8583
F23 - CARD SEQUENCE NUMBER: Information used to distinguish cards sharing the same card number. For example, the Card Sequence Number is incremented by 1 when a card is renewed. In an authorization transaction, if the F22 value is '05x'...
Merchant & POS
A PIN pad lets cardholders safely enter their PIN during POS transactions and lets contactless cards be tapped to transfer card data to the POS. Here is how it works.
ISO 8583
F2 is the Card Number field in ISO 8583, identifying the cardholder and issuing bank. This post covers its structure, the 8-digit BIN update, field format, first-digit scheme identification, and PCI DSS security requirements.
3D Secure
Isbank (Turkiye Is Bankasi) has completed Europe's first migration to EMV 3D Secure 2.0, the current version of the 3D Secure authentication infrastructure used to verify cardholders in online card purchases. Deputy General Manager...
HCE
Tokenization generates secure data from a credit card number, using specific algorithms, for use during authorization. In CNP transactions, it removes the risk of storing or compromising the original card number.
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.
E-commerce
Making payments over the internet using a card is called online payment. Learn what online payment systems are used for and what happens behind an online transaction, from the payment gateway to the issuing bank.
Merchant & POS
PIN Transaction Security (PTS) verifies that card data and PIN information are used for a payment transaction. It is a set of modular evaluation requirements managed by the PCI Security Standards Council for PIN-accepting terminals.
Merchant & POS
Introduction: When a card (credit card/debit card/prepaid card) is used at an ATM or POS, data must be carried securely between systems. For example, in a store sale, the POS initiates the transaction, which must reach the cardholder's bank intact.
Security
Vishing is a method of deceiving the victim using voice. It replaces the "p" in phishing with the first letter of "voice," meaning "voice deception." It is reinforced by technology in social engineering cases to extract information more easily.