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"chip transactions"

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Istanbulkart transit and payment card

Credit Card

Istanbulkart: Both Transit Card and Payment Card

When I think back to the Akbil I used when I first arrived in Istanbul, I think it's fair to say that Istanbulkart has undergone a very significant transformation. Users can now track activity, top up and view balances right from their phones.

Animated illustration of a credit card representing dynamic security code technology

Credit Card

What is a Dynamic Card Security Code (CSC)?

It is a CVV2/CVC2 code that changes every few minutes instead of the static code printed on the back of a credit card, aimed at reducing fraud risk in CNP (Card Not Present) transactions.

Close-up of a payment card chip, illustrating EMV cardholder verification

Online & Authorization

Cardholder Verification in EMV (CVM)

Cardholder verification in EMV is specific to chip cards. One goal of EMV is to minimize card fraud. To do this, three parties must be verified: the bank, the cardholder, and the terminal. One of the data items taken from the card to prove identity is...

Comparison chart showing the differences between CVV and CVV2 security codes

Credit Card

What Is the Difference Between CVV and CVV2?

CVV (CVC) and CVV2 (CVC2) are two terms that cardholders often confuse. Both are used for verification in card transactions, but there are notable differences between them, such as where each is printed and which transactions use it.

Diagram illustrating the PIN Try Counter concept on a payment card chip

Credit Card

What Is PIN (Personal Identification Number) Try Counter?

The PIN Try Counter is a value stored on the card's chip showing the number of remaining offline PIN attempts. Each incorrect offline PIN entry decreases it by 1, and it resets when the correct PIN is entered.

Example of a combo card showing credit card information on the front and debit card information on the back

Credit Card

What is a combo card?

A combo card is a next-generation card that combines both a credit card and a debit card on a single card. Although designs vary visually, the front typically carries the credit card information and the back the debit card information.

Illustration explaining how NFC technology enables contactless payments

HCE

What Is NFC?

NFC, known as Near Field Communication, is a technology that transfers data wirelessly between devices within 10 cm. It is used for data transfer, device pairing, and as the basis of contactless payments.

Secure Card Reader for PIN with mobile device

Security

What Is a Secure Card Reader for PIN (SCRP)?

A Secure Card Reader for PIN (SCRP) is a multi-function card reader that turns any iOS, Android or Windows device into a payment terminal able to accept chip and contactless payments with PIN.

PIN try counter on chip cards

Credit Card

What Is the PIN Try Count?

The PIN Try Count is the maximum number of failed offline PIN verifications that can be made with the card. Banks usually keep both the consecutive wrong PIN count and the maximum wrong PIN count.

Google Card, the physical payment card Google is reportedly preparing to rival Apple Card

Credit Card

Meet the Google Card!

After Apple Card, announced last March to great fanfare, Huawei said it would issue a card too. Google has now joined the race among tech companies by announcing a new card of its own.

Mifare contactless smart card

Debit Card

Features of Mifare Cards

We previously explained detailed information about Mifare cards at the link below: https://unalarif.com/yazi/mifare-kart-nedir/ Now let's list the technical features of Mifare cards.