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WhatsApp for iOS is rolling out passwordless logins with passkeys
Ditch passwords; use your face (or fingerprint or passcode).
Passkey support comes to the iPhone version several months after Meta started distributing it to Android WhatsApp users in October. That way, you can sign in to Gmail, PayPal, or iCloud just by activating Face ID on your iPhone, your Android phone’s fingerprint sensor, or with Windows Hello on a PC. Many services that support passkeys will also reauthenticate to your phone number or email address or to a hardware security key, if you have one.
Or read this on The Verge