It means that as of 2015, merchants in the US who accept magstripe (as opposed to chip and pin) are responsible for any fraud that occurs when the payment was m

It means that as of 2015, merchants in the US who accept magstripe (as opposed to chip and pin) are responsible for any fraud that occurs when the payment was made with magstripe. Even if US retailers were accepting magstripe and taking on the risk, I doubt they would accept a sketchy-looking unlabelled card.