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I know that a metal shield is used in commmercially produced wallets to stop people from using scanning devices to capture credit information from within ones wallet. Can you make a shield by using metal duct tape? Is this metal component thick enough to prevent these scanners from working?
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That would probably work. Personally I would ask my banker, as a lot of the will give you protector sleeves now.
Thin sheets of lead will also do the job. But may result in your employer telling you to get the lead out.
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First off, if you are concerned about someone stealing your card info, you shouldn't have a RFID card. Reguardless the prevention of data theft is best practiced by keeping yor card safe. Secondly, to answer your question, the Duct Tape is not thick enough to prevent theft. The thin metalic layer is simply jsut not enough.
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