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Payment Systems
After Russia invaded Ukraine, Visa and Mastercard suspended services for sanctioned Russian banks. This post explains the impact on cardholders and merchants, and Russia's MIR and UnionPay alternatives.
Credit Card
EMV chip cards contain a small, powerful microprocessor that provides enhanced security, faster transactions, and support for loyalty programs. VSDC is Visa's chip-based solution; M/Chip-Lite is Mastercard's low-cost equivalent for banks starting their chip migration.
Security
The TBB book 'Fraud Detection and Prevention Methods in Banking' analyzes the types of fraud threatening the banking and finance sector and individuals, with examples from the world and Turkey, and offers protection recommendations. This post explains how to access it.
Merchant & POS
In payment systems, exchange rate information is used in two places: POS devices that support foreign currency transactions, and credit card transactions made in a foreign currency (usually abroad).
E-commerce
Amazon PayCode is a payment option that lets customers pay for Amazon orders in cash: after checkout they receive a code and pay at a participating Western Union agent location.
Merchant & POS
The Personal Data Protection Law was adopted by the Grand National Assembly of Turkey on 24/03/2016 and published in Official Gazette No. 29677 on 07/04/2016. It protects individuals' rights in the processing of personal data and sets the rules that data controllers must follow.
Credit Card
Yes. American Express cards have a 4-digit CVV on the front and a 3-digit CVV on the back, like other cards. Here's how payment forms should handle both formats and why logging the security code is never allowed.
Merchant & POS
Almost all of us carry at least one credit card. Imagine losing your wallet with all your cards inside, and someone with bad intentions finding it and using the cards without a PIN. Who bears the responsibility?
Credit Card
Legally, e-commerce sites should not store card details in their own systems; they should only use them when sending transactions. Unfortunately, some sites do not follow this rule.
Chargeback
A soft chargeback, also called a retrieval request, is a request for documents about a transaction the cardholder does not recognize. Learn why customers request them, what information merchants should provide, and why a fast response matters.
Chargeback
A chargeback is when cardholders dispute a transaction made without their knowledge through their card-issuing bank. So what does a Retrieval Request mean? It is essentially a document request related to transactions a cardholder does not recognize on their statement.
Fraud
A man-in-the-middle attack is a method in which an attacker inserts themselves between the server and client to intercept users' information, steal passwords, and gain access to accounts on a local network. This fraud mostly occurs over public internet connections.