Will the Apple Silicone Magsafe Case demagnetize cards in a traditional wallet?

The magsafe case will not ruin your traditional wallet. Since it magnets aren’t strong enough to do that. Only the magsafe charger is possible to do that, since it is passing currency through the other magnet that is on your phone

Hi again spikeymike,

Thanks for clarifying. As with the MagSafe charger, you would just want to make sure that your credit cards are not placed inside the case between your iPhone and the case. Just being in the same pocket would not cause an issue.

Have a great day!

Hi there spikeymike,

Thanks for using Apple Support Communities. It sounds like you have some questions about keeping your iPhone 12 and your credit cards together without damaging them. Our article: How to use your MagSafe Charger with iPhone 12 models says "Don't place credit cards, security badges, passports, or key fobs between your iPhone and MagSafe Charger, because this might damage magnetic strips or RFID chips in those items. If you have a case that holds any of these sensitive items, remove them before charging or make sure that they aren’t between the back of your device and the charger."

What that means is to make sure that your credit cards are not somehow sandwiched between your iPhone and the MagSafe charger. It should not be a problem otherwise.

We hope this helps!

I believe not, since the apple wallet accessory is well built enough to prevent this from happening, although do not try to charge your phone with the magsafe charger and the apple wallet attached to the phone, this could cause to demagnetize cards