The RFID Credit Card Since June 2005, all American Express issued Blue credit cards have been imbedded with an RFID (Radio Frequency Identification) transponder, in addition to the traditional credit card magnetic strip. RFID technology transmits information wirelessly between two or more objects in close proximity. This means that when you make purchases at any of the American Express ExpressPay participating merchants, you simply have to tap the credit card...
Read more