Skip to content

Search

"information security"

221 articles found

Illustration showing a margin added to a foreign currency exchange rate

Merchant & POS

What Is a Marked-Up Exchange Rate?

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).

Diagram showing the structure of ISO 8583 field F48 (Additional Data)

ISO 8583

ISO 8583 Field Descriptions (F48)

DE 48 - ADDITIONAL DATA: these are additional data fields that can be used specifically for transactions. It is 255 characters long. Field F48 carries many pieces of information and is divided into PDS (Private Data Subelements).

One-click checkout by card networks illustration

Credit Card

Card Companies Team Up for “One-Click Payment”

American Express, Discover, Visa and Mastercard have started working together on an infrastructure that lets leading US e-commerce sites accept one-click payments, so shoppers no longer need to type in all their card details.

Application fraud and transaction fraud controls

Fraud

What Are the Types of Fraud Controls?

Fraud controls fall into two main types: application fraud controls, which check card and merchant applications, and transaction fraud controls, which monitor card and POS transactions.

Diagram illustrating a Trusted Execution Environment (TEE) architecture

HSM & Security

What is TEE (Trusted Execution Environment)?

A Trusted Execution Environment (TEE) is an environment where executed code and accessed data are isolated and protected in terms of confidentiality (no one has access to the data) and integrity (no one can alter the code or its behavior). We may not realize it, but many…

European Association for Secure Transactions EAST

ATM

What Is the European ATM Security Team (EAST)?

EAST, originally the European ATM Security Team, is a non-profit organization working on ATM security. Founded in 2004, it later broadened its scope and became the European Association for Secure Transactions.

FAST TR QR Code payment illustration

Mobile Payments

What Is FAST – TR QR Code?

TR QR Code is the QR code standard defined by the regulation on generating and using TR QR codes in payment services. FAST – TR QR Code refers to the TR QR Code used for payments made through FAST, built on BKM's infrastructure.

Illustration of a smart card chip related to the ISO/IEC 7816 standard

Credit Card

What is ISO/IEC 7816?

ISO/IEC 7816 is an international standard jointly maintained by ISO and IEC, covering contact-based electronic identification cards, especially smart cards. It consists of 15 different parts, each covering a different aspect of smart card technology.

Contactless payment limit raised to 350 TL

Contactless

Contactless Transaction Limit Raised to 350 TL

The no-PIN limit for contactless payments has been raised from 250 TL to 350 TL. Contactless payments up to 350 TL can be made without a PIN; above that, they are made contactless with a PIN.

Illustration of a Know Your Customer (KYC) identity verification process

Payment Systems

What is KYC (Know Your Customer)?

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.

Illustration representing the BKM Payment Gateway

Payment Systems

What is the BKM Payment Gateway?

BKM Payment Gateway is the general name for platforms that let government institutions accept card payments through BKM as intermediary. For the first time, SGK and e-Government title deed payments can be made with all banking cards.