Why RFID blocking wallet? Currently most cards are with IC chips. These chips allow vendors to scan your credit card quickly at the checkout an d allow authorities to scan your ID or passport card from a distance, making b order 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!