Why RFID blocking wallet? Currently most cards are with IC chips. These chips allow vendors to scan your credit card quickly at the checkout and allow authorities to scan your ID or passport card from a distance, making border crossing a little faster. However, if your credit cards or identification cards were scanned nefariously, it also makes stealing your identity a whole lot easier. Thieves can purchase scanners online or build their own and steal your Information right through your regular purse or wallet!