> to clarify, if my user set up passkey on their iPhone and that's the only method of authentication for my website, they just wouldn't be able to sign in if th

> to clarify, if my user set up passkey on their iPhone and that's the only method of authentication for my website, they just wouldn't be able to sign in if they lost that iPhone? That used to be the case. Since iOS 16 they are also synced via the iCloud Keychain: "Passkeys on iPhone require that you use iCloud Keychain. If you don’t have iCloud Keychain turned on when you try to save a passkey, you’ll be asked to turn it on. Passkeys also require that two-factor authentication is enabled for your Apple ID." https://support.apple.com/guide/iphone/sign-in-with-passkeys-iphf538ea8d0/ios https://support.apple.com/guide/iphone/sign-in-with-passkeys...