(Eli5)My whole life magnets and electronics were mortal enemies. Now my credit cards are held to my phone by a magnet…

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When or why are magnets safe to use now?

In: Technology

5 Answers

Anonymous 0 Comments

Credit cards have a magnetic strip (swipe type) with their information on them. Magnets could erase this info. Nowadays, most cards have chips (insert type and/or tap type) which aren’t damaged by magnets.  The magnetic strip still usually exists as a backup, and still is likely damaged by magnets. If you’re holding your card near magnets, the strip is probably erased, but you can still insert or tap with it but likely not swipe.

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