There certainly is. I have done this with a non-payment card. All you need is a magstripe reader/writer. A few tens of passes of writing random data to the mags

There certainly is. I have done this with a non-payment card. All you need is a magstripe reader/writer. A few tens of passes of writing random data to the magstripe should do the trick. Not sure how this would impact the usability of your card though, in case you do end up relying on the magstripe.