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Diagram of a first credential-on-file transaction using stored card data

Security

What is the First Credential-On-File transaction?

The first transaction made after a customer's card data is stored with a merchant is called the First Credential-On-File transaction. BKM expects it to be flagged with the value "C" in switch message field DE48.PDS86, and BRSA draft rules govern how card data may be stored.

Illustration showing how an Application Identifier (AID) is used in a chip card transaction

EMV

What is an Application Identifier (AID)?

The AID tells the terminal which applications are present on a chip during a POS or ATM transaction. What does the AID do? It lets the terminal determine whether it supports an application on the chip. In Tag 9F06, it is 5-16 digits long.

Announcement graphic showing the FAST money transfer limit raised to TRY 20,000

Payment Systems

FAST money transfer limit raised to TRY 20,000

The limit for FAST transactions, which enable interbank 24/7 instant money transfers, was raised to TRY 20,000 as of 14.02.2023. This post covers the change and its impact; the figure is historical and the limit has since been raised again.

Screenshot illustrating a prepaid card and its features

Credit Card

What is a prepaid card?

A prepaid card is a customized card, with or without a chip, not linked to a bank account and without a credit limit like credit cards, letting you spend only the amount loaded onto it.

FAST instant payment limit now 2,000 TL

FAST

FAST Limit Raised to 2,000 TL

The FAST limit, which was decided on 4 August 2021 to be raised to 2,000 TL, has been raised to 2,000 TL as of today. Instant payment volumes are expected to grow further as EFT volumes decline.

Photo of a prepaid card used for everyday purchases

Credit Card

What should you know before buying a prepaid card?

A prepaid card is a customized chip or chipless card that is not linked to a bank account and has no credit limit like a credit card. You can only spend up to the amount loaded onto the card.