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Payment Systems
TCR stands for Transaction Record Component, the packets that carry transaction information in a clearing system. Transaction types in a clearing file are distinguished by transaction code and usage code values, and this data is sent inside TCR packets.
Security
SCRW (Smart Card Reader Writer) can be translated as Smart Card Reader/Writer. Smart chip card readers are sophisticated devices with built-in intelligence, usable in PCs, laptops, servers, smartphones, and set-top boxes.
Credit Card
Card security is critical in card payment systems. Chip&Pin curbed much fraud, but gaps remain. Cornercard, Gemalto and Visa launched Switzerland's first credit card with a built-in fingerprint reader. Here is how it works.
Online & Authorization
Commercial off-the-shelf (COTS) products and services are ready-made, packaged solutions adapted to a purchasing organization's needs, rather than custom-built ones. In payment systems, COTS includes ready-made payment apps for phones and Android POS devices.
Security
A CP transaction refers to a card transaction in which the card and cardholder are physically present at the location. Card Present transactions occur when the card's magnetic stripe or chip data is read by a POS terminal or ATM, or via contactless.
HSM & Security
ZWK stands for Zone Working Key. It encrypts the PIN so that it can travel securely between different financial institutions, such as the acquiring bank and the issuing bank.
Merchant & POS
Current information: This article describes the limit as of its publication date. For the current contactless (no-PIN) transaction limit, see the linked article. The introduction of contactless transactions brought new concepts and structures.
Merchant & POS
An offline transaction is one in which the card and POS terminal approve the transaction based on their own parameters, without contacting their banks. Whether contact or contactless, the device decides whether the transaction is processed offline.
Chargeback
A chargeback is a dispute raised against a card transaction when the cardholder did not make it or does not recall it. The dispute types vary depending on the situation; let's look at them.
HCE
The HCE cloud-based security infrastructure consists of four main pillars: Tokenization, Risk Management, Session Keys, and User/Device Authentication. Tokenization indicates the type of token generation, and there are three different tokenization methods.
Credit Card
Card copying usually happens with magnetic stripe debit cards. As soon as you notice your card details have been copied, you can close the card, renew it or change its PIN.
ISO 8583
F39 - RESPONSE CODE: This is the code showing whether the transaction was approved or declined. It is 2-digit alphanumeric. Typically 00 is sent when approved, and a decline reason code is sent when declined.