SUPER clever idea -- kudos for that. In theory, this is awesome. As a consumer, I love it. As a merchant, however (which I am), there is no chance I would accept this. None. Unless the issuers (that is, Visa, MC, Amex) drastically change their policies, which I don't see happening anytime soon. Why? Because the issuers are very clear about a few things: When push comes to shove and it REALLY gets down to it, unless t…
I don't know why the US hasn't adopted EMV. It's not perfect, but it has cut down fraud massively here in Europe. They're very hard to clone (I won't say impossible, but attacks against EMV have not generally been of this nature) and the transaction records at both ends will tell you whether the actual, real card was there. The liability is more clear-cut as a result. If the customer claims the charge was unauthorise…
It seemed like a completely unusable system for it's complete lack of any security.
(Particularly if you consider there are now live payment systems that use pretty much the same audio jack serial port hack as this one does to clone cards)