When you want to sign in later, all Passkeys would have to do is prove that your device has the corresponding private key, which it would do by asking you to authenticate via Touch ID or Face ID. All the Internet service would have is your username and your public key. In short, when you sign up for an Internet account, you would create only a username Passkeys would create the passkey and store it in your keychain. It gives a glimpse of how Apple thinks this new passwordless authentication approach will work. Last year at Six Colors, Dan Moren wrote about Apple’s Passkeys system, introduced as a technology preview at WWDC 2021. To an extent, all three companies already support FIDO Alliance standards to enable passwordless logins, but this announcement expands those capabilities by providing automatic access to FIDO passkeys on multiple devices without having to re-enroll every account and by allowing FIDO authentication on a mobile device to sign in to an app or website on another device nearby, regardless of the operating system or Web browser in use. Why don’t we instead get to use sophisticated biometric authentication like Touch ID and Face ID more broadly? That may happen in the coming year, thanks to Apple, Google, and Microsoft committing to support the FIDO standard for passwordless logins. We just published a lengthy article about an email scam that exists only because too many people have weak passwords that they reuse across multiple sites (see “ How to Help a Friend Whose Email Has Been Hacked to Send Scams,” ).
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