Merchants who accept payments using the Mag swipe are now liable for any fraudulent charges. So any hold-outs will quickly switch once they get targeted. I wou

Merchants who accept payments using the Mag swipe are now liable for any fraudulent charges. So any hold-outs will quickly switch once they get targeted. I would expect banks to soon start limiting the amount that can be charged via the mag stripe to slowly close this loophole. $100 per transaction should be sufficient for the majority of use cases. Gas stations are currently the major holdouts due to the cost of switching out the terminals on pumps.