ATM
What Is FDK (Function Display Key)?
At ATMs, transaction selection and processing are carried out using the buttons on the right and left of the ATM screen. These buttons are called FDK (Function Display Key) buttons. Does every ATM have FDK?
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"ATMs"
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Fraud
Famous Hacker Caught After 8 Years
Recently the following news story appeared in the papers. Two things stood out: the hacker was a former banker, and the device he used to clone cards. In banking fraud, insiders who know the system's weak points can build schemes customers never notice.
ATM
What Is Jackpotting?
Jackpotting describes a method criminals use to steal money from ATMs. With physical access to the machine, they take control of it and make it dispense all of its cash.
ATM
What Is FLM (First Line Maintenance)?
FLM (First Line Maintenance) refers to service calls that require no tools or parts but are needed to return an ATM to proper working condition. It covers basic issues such as paper jams, cash jams, and restocking consumables.
ATM
What is a Dispenser?
A dispenser is a part of the ATM. It contains cassettes where cash is loaded; these cassettes are configured during ATM installation. Based on the defined denomination, cash is loaded so the ATM can dispense that type to customers. Does every ATM have a dispenser?
ATM
What is the Greedy Algorithm?
In payment systems, the Greedy Algorithm is used to give the customer the minimum number of banknotes when withdrawing cash from an ATM. The algorithm used varies from bank to bank, since ATM cash capacity and transaction volume differ. For example...
Payment Systems
What is a tower?
In payment systems, the tower is the section inside an ATM where cash is physically stored. It contains cassettes holding different banknote denominations, a mix cassette for mismatched notes, and various security mechanisms protecting the cash.
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.
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.
Credit Card
Credit Card/Debit Card Fraud
Credit card fraud is generally committed using the card itself, using card details without the card, via excess or duplicate withdrawals, or by seizing identity information. ATM card trapping is common, since ATMs hold the card during the transaction.
Payment Systems
Visa and Mastercard Branded Cards Will No Longer Work in Russia
After Russia invaded Ukraine, Visa and Mastercard suspended services for sanctioned Russian banks. This post explains the impact on cardholders and merchants, and Russia's MIR and UnionPay alternatives.
Laws & Regulations
What Is a Card Scheme Organization?
A card scheme organization establishes a debit, credit or prepaid card system and authorizes entities to issue cards or sign merchant agreements. Troy, Visa, Mastercard, American Express, JCB and MIR are examples. This post explains how ATM and POS certification works.