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"Card Data"

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Diagram illustrating the Track 1 data structure and field layout on a magnetic stripe card

Credit Card

What is Track 1?

Track 1 is a special data set encoded on a card's magnetic stripe that contains the card information required for authorization when the card is used physically. It includes the cardholder name, card number, and expiration date.

BRSA credit card statistics dashboard illustration

Laws & Regulations

What Is the BRSA Credit Card Statistics Application?

It is data published by the BRSA, compiled from information periodically collected through the BRSA Data Transfer System (BVTS) from banks and other institutions under its supervision.

Infographic of BKM card payment statistics for the first six months of 2021

Payment Systems

BKM Announces Data for the First 6 Months of 2021

The Interbank Card Center (BKM) shared its data for the first 6 months of 2021: card payments totaled TRY 709 billion, online card payments reached TRY 188 billion, and the number of contactless payments tripled year on year.

ATM card reader unit

ATM

What are an ATM's Input and Output Units?

The units that let an ATM receive data are called Input Units, and the units that display data are called Output Units. Learn about the card reader, keypad, speaker, display, receipt printer, and cash dispenser.

Diagram explaining the PAN Sequence Number (PSN) field on a chip card

Credit Card

What Is PSN (PAN Sequence Number)?

A 2-character field written to the card's chip data that increases by 1 with each card renewal, allowing authorization to distinguish between the old and new card. This means that, theoretically, assuming no other conditions prevent it, a...

Photo of a POS terminal related to EMV Issuer Action Code settings

Online & Authorization

Issuer Action Code (IAC)

These are codes that communicate the issuer's conditions for approving a transaction online (IAC-Online), for declining it (IAC-Denial), or for declining it when the terminal cannot go online (IAC-Default).

POS terminal processing an EMV chip card transaction

Credit Card

Application Interchange Profile (AIP)

The Application Interchange Profile indicates the application functions supported by the card. The AIP values and their descriptions are given below. Where is the AIP found? The AIP is a 2-byte piece of data stored on the card, carried under EMV tag 82.

BKM Express digital wallet screen

E-commerce

Will BKM Express Continue to Exist?

BKM Express has pioneered card storage and digital wallets in Turkey. After the Competition Authority's termination decision, a Board decision revoked it, so BKM Express will continue. Here is the latest situation.

Diagram of chip card file structure showing MF, DF, and EF layers

EMV

What is Dedicated File Name (DFN)?

DFN is the abbreviation for Dedicated File Name. It defines the name of the DF (Dedicated File) as described in ISO/IEC 7816-4. It is the data found in Tag 84, 5 to 16 characters in length.

Diagram illustrating the role of a Secure Element Issuer in mobile payments

HSM & Security

What is a Secure Element Issuer?

Secure Element Issuer is the stakeholder that provides, maintains, and updates the secure element in cases where mobile payment application and card data are stored in the secure element inside a mobile phone.

Issuer data and BIN definitions on POS terminals

Merchant & POS

Why Are Issuer Data Definitions Important?

The most important part of issuer data definitions is that they are built around your own bank's or institution's developments and application flows. Missing BINs can break installments, rewards and routing on POS devices.