
Credit Card
What Are the World's Most Exclusive Credit Cards?
From the invite-only American Express Centurion Card to the diamond-studded Dubai First Royal MasterCard, discover the world's most exclusive credit cards.
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Credit Card
From the invite-only American Express Centurion Card to the diamond-studded Dubai First Royal MasterCard, discover the world's most exclusive credit cards.

Merchant & POS
Chip&Pin, introduced in Turkey on March 31, 2006, is a payment method that greatly reduces the risks of card copying and loss or theft fraud. The chip on the card reduces copying risk, while the 4-digit PIN prevents unauthorized use of a lost card.

Laws & Regulations
Under the Directive, payments made through telecom operators cover the purchase of digital services such as music, digital newspapers, e-tickets or charity donations, within certain amount thresholds.

Merchant & POS
A step-by-step walkthrough of a 100 TL POS sale: end-of-day batch close, clearing through BKM, interchange and merchant commission, and why the merchant gets paid even if the cardholder never pays the card bank.

Merchant & POS
Code 10 is when a merchant suspects the cardholder or the card is counterfeit and calls the card's bank, which then verifies the transaction with the merchant's bank. If staff suspect a card or cardholder, they should call the bank immediately.

ISO 8583
DE 52 — Personal Identification Number (PIN) Data: the field that holds the PIN data. PIN verification is carried out based on this field.

Payment Institutions & E-Money
On 7 October 2023, the CBRT amended the Communiqué on Information Systems of Payment and E-Money Institutions and Data Sharing Services of Payment Service Providers, first published on 1 December 2021. Links to the new text, a comparison table and a detailed summary of changes follow.

ATM
One of the most important things to watch when using an ATM is PIN security. Since ATMs handle customers' cash transactions, it is no surprise they are prime targets for fraudsters.

Fraud
Data leakage is the intentional or accidental exposure of sensitive data through any channel where it is stored, processed or transmitted. This post covers its three main causes and the DLP solutions used to prevent it.

E-commerce
Online shopping is a form of e-commerce in which consumers complete purchases over the internet using a credit card/debit card, bank transfer, or cash on delivery.

Cryptocurrency
Cryptocurrencies are becoming part of everyday life and are expected to compete seriously with card payments. This glossary explains the key crypto terms, from address, altcoin and arbitrage to halving, mining, proof of stake and stop-loss.

Payment Systems
With its announcement of 30/11/2023, the Revenue Administration published a draft Tax Procedure Law General Communiqué to complete the replacement of old-generation payment recorder devices (EN OKC) with new-generation ones (YN OKC), reduce cash use and increase card payment options.