Wondering if they could develop a multi-factor auth model to complement the card to make the CC company's happy. Thinking out loud here... could you make the u

Wondering if they could develop a multi-factor auth model to complement the card to make the CC company's happy. Thinking out loud here... could you make the use of the Coin card dependent on being within range of your bluetooth enabled cell phone. If the card knows that it is being swiped (not sure if it does)... then the in-range phone could know and send a msg to the CC company with the shared secret saying "yo, it's legit". Now a thief would have to steal both the phone and the card for it to work. I'm sure there are a million holes in this, but just putting it out there. Similar concept could work regular CC's as well. CC company comes up with "card swiper 2.0!" and deploys them to merchants. I as a consumer get some incentive from the CC company to register my device with them. When my card get's swiped at a merchant... card swiper 2.0 tries to detect my device. If it sees it, great, lower chance of fraud. If it doesn't, give me a ring to see if I'm aware that my card was used or deny the charges. Might help the triage the sheer number of transactions out there for what's fraud and what isn't.