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BKM HİYS dispute and chargeback management workflow

Chargeback

What Is HİYS (Dispute Management System)?

The Dispute Management System (HİYS) is the system used among BKM members to share chargeback transactions and the supporting documents that must accompany them, linked to Domestic Clearing and Settlement System data.

Illustration of an e-commerce checkout page with card payment fields

Merchant & POS

How Important Is the Checkout Page in Payments?

The checkout page is where an online purchase is completed, and cart abandonment is highest there. This post lists design tips: support all cards, limit transition pages, show security cues, allow guest checkout and remove distractions.

Illustration of collecting a card payment through an SMS payment link on a mobile phone

Merchant & POS

What Are the Advantages of Collecting Payments by SMS?

In the past, collecting a payment meant physically swiping a card through a POS device. Payment methods have since diversified so much that customer satisfaction, transaction counts and volumes have all increased. Here is why SMS payment is gaining popularity.

Diagram illustrating the Access Control Server (ACS) role in the 3-D Secure authentication protocol

Security

How can I find the list of Access Security Control (ACS) companies?

Access Security Control (ACS) is the security protocol that the card-issuing bank must maintain under the 3-D Secure protocol to support cardholder authentication. 3-D Secure is an XML-based protocol that adds an extra security layer to online card payments.

UnionPay logo

Payment System Institutions

What is the UnionPay Online Payment System (UPOP)?

UnionPay Online Payments (UPOP) lets merchants in China, New Zealand, Australia and other countries extend their e-commerce stores to accept UnionPay payments. UnionPay supports over 5 billion cards in more than 140 countries.

Credit card with a built-in fingerprint sensor for biometric cardholder verification

Credit Card

Who Wouldn't Want a Credit Card with a Biometric Reader?

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.

Screenshot illustrating how a payment gateway connects an e-commerce site to a bank

Online & Authorization

What is a Payment Gateway?

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.

Contactless card payment at a POS terminal after the limit increase to 250 TL

Merchant & POS

Contactless transaction limit raised to 250 TL

Current information: this article describes the limit in force at the time of publication. To reduce the risk of the coronavirus (Covid-19) spreading, the contactless transaction limit on credit and debit cards was raised to 250 lira.