Can a magnet really make your Credit Card not work?
Is this theory true or is it a hoax????? 
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Yes, it really can, especially if it’s a powerful magnet. In fact some cell phones have magnetic latches strong enough to erase a credit card, so be careful about carrying them together (see link).
The myth is that eelskin wallets can erase credit cards, and that’s absolutely not true. An electric eel has to be alive to produce an electric current. Eelskin doesn’t have an electric or magnetic charge.
A magnet can erase the strip on your credit card, making machines unable to read it.
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True.
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It is true.
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Yes, it can destroy it.
By the way, never put a strong magnet anywhere near a Nissan dashboard.
My car hasn’t worked the same since.
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The dark strip on the back of the card is a magnetic information point. If a magnet is against it it will many times corrupt the information and render the card unreadable by the card readers.
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Been there, wiped many card strips when sitting on geanerators.
Yes, it really can, especially if it’s a powerful magnet. In fact some cell phones have magnetic latches strong enough to erase a credit card, so be careful about carrying them together (see link).
The myth is that eelskin wallets can erase credit cards, and that’s absolutely not true. An electric eel has to be alive to produce an electric current. Eelskin doesn’t have an electric or magnetic charge.
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http://gizmodo.com/187223/the-sidekick-3-may-erase-your-credit-cards
The credit card will still work. The card readers just won’t be able to read the magnetic strip on the card.
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BD