You can pay at a restaurant by smiling at a camera

As easy as it is to make purchases in the era of tap-to-pay services, it's about to get easier still. Alipay (which handles purchases for Chinese shopping giant Alibaba) has launched what it says is the first payment system that uses facial recognition to complete the sale. If you visit one of KFC's KPRO restaurants in Hangzhou, China, you can pay for your panini or salad by smiling at a camera-equipped kiosk -- you need to verify the purchase on your phone, but you don't have to punch in digits or bring your phone up to an NFC reader. The system (Smile to Pay) is purportedly resistant to spoofing with photos and other tricks. It relies on both depth-sensing cameras and a "likeness detection algorithm" to make sure it's really you.