How Easily Can Data Be Stolen from RFID Credit Cards?

The passive RFID tag a credit card is an HF tag based on the ISO 14443 air-interface protocol, which limits the read range to a few inches, for security reasons. RFID credit cards are actually much safer than conventional magstripe cards. With a magstripe card, you a hacker could easily capture the information stored on the magnetic stripe and create dozens of cards that are exact duplicates. These could then be used online or in person. With an RFID-enabled credit card, there is a CVV on the back that works for conventional magstripe purposes (if a retailer does not have an RFID reader), but the electronic CVV is dynamic.