Engadget: What the hell are passkeys and why are they suddenly everywhere?

Passkeys promise a future without passwords, where we access our accounts as easily as we unlock our phones, with a much higher level of security. “It’s the closest to something that can be scaled to get rid of passwords that we’ve ever seen,” said Megan Shamas, senior director of marketing at industry association FIDO Alliance. A passkey is a digital authentication credential that is securely stored on your device. Instead of what Shamas called a “shared secret” method of passwords, passkeys are a unique key pair for every online service you use bound to the domain.