Credit Card
What Is a Card Expiration Date?
What is a card expiration date? Learn why banks print this date on every card, how it's used in purchases, and what happens once it passes.
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"Expiration Date"
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Credit Card
What Is Effective Date?
The Effective Date is the information showing the date until which a card can be actively used. It can also be called the expiration date. It is a mandatory field printed on the card and used in transactions, set by banks for card security.
ISO 8583
ISO 8583 Field Descriptions (F14)
F14 - DATE, EXPIRATION DATE: the expiration date printed on the card by the issuing bank, a 4-digit numeric value in YYMM format. See how it's checked and why the YYMM order matters.
Online & Authorization
What are EMV Tags?
In EMV, data is stored in Tag-Length-Value (TLV) format, and it is carried between the card, the POS terminal, and the authorization system in this same format. This post lists every EMV Tag, its type, and its description.
Credit Card
Apple Is Rewriting the Card World...
Most of us remember the impact the first iPhone, introduced by Steve Jobs on January 9, 2007 and revolutionary for its time, had on our lives. In a similar way, a product that will completely change how we use and view credit cards...
Payment Systems
What Is TCR (Transaction Record Component)?
TCR stands for Transaction Record Component, the packets that carry transaction information in a clearing system. Transaction types in a clearing file are distinguished by transaction code and usage code values, and this data is sent inside TCR packets.
Merchant & POS
What Features Should POS Paper Rolls Have?
POS paper rolls, which seem like the simplest part of a POS terminal, must still meet certain conditions. Most of us only look at the amount on the front of the receipt, never the back.
Credit Card
How is CVV generated?
CVV is a very critical 3-digit value used during a card's authorization process. The CVV value is encoded in the card's magnetic stripe data (Track 1 and Track 2). Is it generated by an algorithm or chosen at random?
HCE
What components make up an HCE Token (Transaction Token)?
The token used in HCE transactions contains more than just a new number derived from the card number. It also includes single-use keys, an expiration date, RSA keys and certificates, transaction limits, and an Application Transaction Counter (ATC).
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.
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...
Chargeback
How to Reduce Chargebacks (For Cardholders)
A chargeback is when a cardholder asks the issuing bank to refund a transaction made without their knowledge. It cannot be prevented entirely, but simple precautions can minimize the risk. Here is how the process works and what cardholders should do.