I went to the World Series and bought a hot dog with my phone

What is the worst part of buying something at a sporting event? At AT&T Park in San Francisco, I think it’s paying $11 for a beer. But for Apple, here (and eventually in other places) it’s using your credit card to do it. You know, that small piece of plastic that you need to lug around in your pocket, and that has a bunch of sensitive information in plain sight.

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