 NXP have responded by pointing out that they had introduced the MIFARE Ultralight C in 2008 with 3DES protection and in November 2012 introduced the MIFARE Ultralight EV1 with three decrement only counters to foil such reloading attacks.For systems based on contactless smartcards (e.g.public transportation), security against fraud relies on many components, of which the card is just one.