This goes along with smashing your phone.
Since the big box stores (and Obamacare) are juicy targets for hackers looking for your goodies here is how you stop them. Buy yourself some rechargable pre-paid credit cards in $50 increments. Use them for your purchases and if someone hacks the information the most that they can get is what is left of $50. When it's empty, charge it back up. If you have a good provider who trusts you these can be used as currency. There is a number to confirm the balance on the back of the card.