How can I protect my credit cards from magnets?
chelsea asked:
I recently bought a magnetic card case to carry my credit cards and it seems that the magnet is destroying my credit cards. I had a case exactly like this (same brand, same type) before and the magnets never did this before. Is there anything I can do?
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I recently bought a magnetic card case to carry my credit cards and it seems that the magnet is destroying my credit cards. I had a case exactly like this (same brand, same type) before and the magnets never did this before. Is there anything I can do?
I already wrote the company that makes the card case and they were no help at all.
March 21st, 2009 at 5:25 am
I doubt the magnetic card case has a strong enough magnetic field to damage your cards. Typically, it would take a magnet of a several tesla to do any harm. Check the back of cards for scufs and scratches.
March 21st, 2009 at 4:41 pm
Keep your cards away from any magnet.
March 23rd, 2009 at 2:04 am
If you can enclose them in a metal case that might help; Magnetism can not penitrate a metal shell.
March 25th, 2009 at 1:51 pm
Mythbusters did a show about this they tried all sorts of things and found it very difficult to damage the encoded info.
March 26th, 2009 at 2:11 pm
You typically need an alternating magnetic field to damage magnetically encoded information. A magnet in a credit card holder isn’t likely to do it.
March 28th, 2009 at 7:17 am
wrap it with an insulator