The unfortunate truth is that identity theft is an ever growing area of concern in our society and RFID scanning is fast becoming a favorite tactic for credit card thieves throught the country. Imagine! All a potential theif would required is a cheap, widely availble scanning device (and a slightly malfunctioning moral compass) and voila! they can scan away from a safe distance and read information from nearby credit cards while they are still inside a wallet or purse!
One surefire way to prevent this is to protect your cards with a wallet such as this one which has built in RFID repelling technology which actively shields your cards from any and all RFID scanning attempts.