Help Desk FAQ

Credit Cards

Debit Cards


I’ve heard new terms related to credit/debit card security, such as EMV, Chip, tokenization—what do they mean?

  • Chip cards (EMV chip technology) are payment cards that store the cardholder’s information on a computer chip embedded in the front of the card rather than on a magnetic strip on the back of the card. Chip cards add a layer of security to card transactions by turning cardholder information into a unique code for each transaction. This function makes it impossible for criminals to create counterfeit chip cards for in-store use. 
  • EMV stands for “Europay, Mastercard and Visa.” EMV is the common language that chip cards use to communicate with chip readers. 
  • Liability shift. As of Oct. 1, 2015, businesses that do not have the technology to accept chip cards are liable for resulting card fraud if the customer presents a chip card at the point of sale but is forced to use it as a swipe card due to the lack of a chip reader.
  • Chip and PIN. In some other countries, customers are asked to enter a 4-digit PIN when they pay with a credit card, much like U.S. customers already do when they pay with a debit card. The PIN is a way of verifying that the person paying with the card is the legitimate cardholder. In places like the United Kingdom, where both chip cards and PINs are used, this system is referred to as “Chip and PIN.” However, it is still uncertain if PINs for credit transactions will be widely adopted in the U.S. as well.
  • Tokenization. Tokenization is another way of securing card transactions and preventing data breaches. In a tokenized transaction, the customer’s account number is replaced with a “token”—a series of unique, random characters that acts as a substitute for the real account number so that sensitive cardholder data is never seen by the merchant and is completely worthless to any criminal who might steal it. Tokenization helps secure transactions that take place online or over the phone. Some tokenization technologies are already available. For example, Apple Pay and American Express cards make use of tokenization to protect customer data.

Source: Community Merchants USA



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