I was just reading that apparently there are some credit cards now with a RFID chip in it that emits the account number, expiration data and other information. This is so you can just wave the card by a scanner instead of swiping it. Sounds great but how great is it when you realize that your information is now 'out there' for anyone.
There is a company that makes cell phones with scanners embeded in them. You would never know if someone waved one of these by your back pocket.
Scary, huh? There is a solution, a way to protect yourself; a rfid wallet--keep your cards in the wallet and it will block the radio signals needed to read the information contained on RFID cards.
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