I had not used the card in several weeks. Coffee and a breakfast sandwich at Wendys was the only purchase I made that day. ~4 hours later my card was declined when checking in to my hotel in LA. Called their security department, they wanted to know whether I had authorized a $4000 purchase at a Best Buy in Dallas.
> In the dark old days before Apple Pay, where it was common in America to hand your credit/debit card to some rando at a restaurant
I don't think I've ever seen anyone use a phone to pay at a restaurant. I think I generally see 95%+ pay with cards, the same way that "was" common. The rest is cash. Maybe I'm just not paying attention? I don't know.