The magnetic stripes on traditional credit and debit cards store contain unchanging data. Whoever accesses that data gains the sensitive card and cardholder information necessary to make purchases. That makes traditional cards prime targets for counterfeiters, who convert stolen card data to cash. Unlike magnetic stripe cards, every time an EMV card is used for payment, the card chip creates a unique transaction code that cannot be used again.
EMV technology will not prevent data breaches from occurring, but it will make it much harder for criminals to successfully profit from what they steal. Experts hope it will help significantly reduce fraud in the U.S., which has doubled in the past seven years as criminals have shied away from countries that already have transitioned to EMV cards.