Heh your definition of the word hacker is way too narrow if you think all we're doing to sitting around behind screens all day spouting 31337 sp34k on the inter

Heh your definition of the word hacker is way too narrow if you think all we're doing to sitting around behind screens all day spouting 31337 sp34k on the interwebz. No, you're wrong. If it can be done it will be done. It's just too much reward versus the risk. Stealing this way scales too well. In a normal shop the risk of detection is variable, and therefore higher on average. Sometimes people will be alert, sometimes not, sometimes there will be guards sometimes not. Now this is different, it's all down to following the correct number of steps to get the desired results. If you replace these two stickers, now scan this then switch this... It'll be down to a few bits in some chip somewhere that decides how much you need to be billed. I'm sure it won't hurt adoption or even lead to a significant increase in lost merchandise, but I'm equally sure it will happen.