Amazon has unveiled new palm recognition technology in a blog post that lets you pay for goods with just the palm of your hand. Called Amazon One, the technology, which builds a palm signature from the details of the palm, will first be introduced in the company’s Go stores in Seattle. Amazon One users won’t need an Amazon account, but just a phone number and a credit card. Dilip Kumar, vice president of Amazon Physical Retail, wrote in the blog post that palm recognition is considered more protective of users’ privacy that some other biometric alternatives because you can’t determine a person’s identity by looking at an image of their palm, and it requires someone to intentionally hold their palm over the reader device. It’s also contactless, which is a plus in our current socially-distanced world.