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RFID chips now exist in:
etc... |
Think Geek and many other companies are selling RFID wallets etc. but all you really need is a bit of aluminum foil!
He explains:
There are two materials which impede Radio Signals with incredible success... Water & Metal. Although you could fill a bag full of water and place your money, wallet, or whatever else in it, let's continue with the metal route. A single layer of aluminum foil of only 27 microns thick is often enough to block the RFID signals of most readers or 1mm of dilute salt water. A quick test at my work place using my badge confirmed the effectiveness of a layer of aluminum foil. (insert obligatory aluminum foil hat joke) So... the next step was to design a wallet with aluminum foil embedded inside. Using the plans to make Duct Tape Wallets I created previously, it was simple to modify them to include the aluminum foil.
If you're simply looking for a bit of casual protection, simply stacking your cards next to each other will assist in reducing their strength.
For more information, visit his website.
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