Great explanation of how Apple Pay actually works.
From the article:
One of the objections I’ve seen to Apple Pay is “How is it faster/easier than just sliding my card?” The truth is, it isn’t always. It’s rarely going to take longer than sliding a card, but it’s not always going to be radically faster either. However, it is much, much more secure. Merchants simply can’t be trusted with your card number, and the only real solution is to never give it to them. Apple Pay solves that, and it does so in a way that embraces industry standards and is easy and maybe even a little bit fun.