I just read the Pay By Touch web site - they appear to be using the finger print as an authentication method - linked to a credit card. If this is the case, you would have the same capability of challenging a charge as if you used plastic to make it.
Also they state that they don't capture the image but an unreversable token based off of the print characteristics.
I tend to agree with others statements - a severed finger would be easily recognized at a Albertsons checkout line. And some super-spy glove would contribute to such a low percentage of transactions, it would not be considered more dangerous than a piece of plastic with a magstripe.
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I just read the Pay By Touch web site - they appear to be using the finger print as an authentication method - linked to a credit card. If this is the case, you would have the same capability of challenging a charge as if you used plastic to make it.
Also they state that they don't capture the image but an unreversable token based off of the print characteristics.
I tend to agree with others statements - a severed finger would be easily recognized at a Albertsons checkout line. And some super-spy glove would contribute to such a low percentage of transactions, it would not be considered more dangerous than a piece of plastic with a magstripe.