Millions of credit cards, debit cards, and passports issued since 2006 are embedded with a Radio Frequency Identification (RFID) chip that contains personal information. The technology was designed to let us bypass the standard requirements of scanning or checking in. However, electronic identity thieves have undermined the security of RFID products by devising scanners that read your personal information without you even realizing it. Blocking 13.56MHz frequencies, the standard for most credit cards and passports, items such as the RFID-Blocking Passport Shield have allowed individuals to protect themselves from electronic pickpocketing and identity theft. Shield yourself today. Credit Card comes with three sleeves, Passport with one.