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ATM machine vulnerable to hacking and fraud

ATM

Can ATMs Be Hacked?

ATMs are among the channels banks use most to serve customers. Besides being one of the most important channels, because they physically dispense cash and give access to a customer's account, many fraud cases occur at ATMs.

ATM machine targeted by jackpotting attacks

ATM

ATM Hacking Attacks Are on the Rise!

ATMs hold large amounts of cash, which keeps them in fraudsters' sights. Diebold Nixdorf and NCR report that jackpotting attacks have reached the United States. Here is what happened and what precautions can improve ATM security.

Diagram illustrating the structure of a Bank Identifier Code (BIC)

EMV

What is a Bank Identifier Code (BIC)?

BIC stands for Bank Identifier Code. It is the universal bank identification code used for automated processing in banking and related financial environments, identifying banks as specified by the ISO 9362 standard.

Illustration for a glossary of cryptocurrency terms such as Bitcoin, blockchain and mining

Cryptocurrency

What Are the Terms Used in the Cryptocurrency World?

Cryptocurrencies are becoming part of everyday life and are expected to compete seriously with card payments. This glossary explains the key crypto terms, from address, altcoin and arbitrage to halving, mining, proof of stake and stop-loss.

Diagram illustrating Terminal PIN Key (TPK) usage in POS and ATM devices

HSM & Security

What is TPK (Terminal PIN Key)?

TPK stands for Terminal PIN Key. It is a data encryption key used to encrypt PINs for transmission between a terminal and the terminal's bank (acquirer) within a local network. Learn how TPK is used in POS and ATM devices.

Illustration representing the products and services KKB offers directly to its member institutions

Credit Card

What Products and Services Does KKB Offer Directly to Members?

KKB was established, under banking law, to enable the exchange of all kinds of information and documents among at least five banks, and it also shares credit information about customers. The Credit Bureau of Turkey also serves deposit banks, participation banks, financial institutions, and more.

HCE terminology and architecture diagram

HCE

Terms Used in HCE Terminology

When we talk about HCE methodology, many interacting architectural components come to mind. The core terms describing this architecture are listed below, starting with GCM/FCM (Google/Firebase Cloud Messaging), a service for sending push notifications.

Diagram illustrating the ISO/IEC 14443 contactless card communication standard

HCE

What Is the ISO/IEC 14443 Standard?

An international standard that defines proximity cards used in Near Field Communication (NFC) and the protocols used to communicate with them. It has 4 parts; Part 4 covers NFC and HCE operations.

Open banking illustration representing payment services data sharing APIs between financial institutions and third-party providers

Payment Systems

Guide on Data Sharing Services in Payment Services Published

Open banking opens financial data, under the regulations and with the customer's explicit consent, to third-party service providers through standard APIs. The CBRT has published a guide on payment initiation and account information services, covering licensing and technical certification.

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.

Illustration of dynamic CVM limit management for contactless card payments

Payment Systems

Dynamic CVM Limit Management Approach: A New Era in Card Security

One of the most notable recent developments in card payments is that contactless limits are no longer fixed and can be managed dynamically per customer. Mastercard and Visa are taking different but complementary approaches, and ISO 8583 may need to evolve with them.

ISO 8583 F124 field structure and subfield breakdown

ISO 8583

ISO 8583 Field Descriptions (F124)

F124 (Private Additional Data) contains additional information specific to the transaction, such as Card Update Failure Code and Status, cardholder name in money transfers, and keys in network management messages.