WhatsApp Testing Passkey Feature for iOS

The new security feature, currently in beta, will allow iPhone users to sign in using biometrics instead of passwords.

Overview

WhatsApp is testing a new security feature for iPhone users that allows them to sign into their accounts using a passkey, a passwordless authentication technology that uses biometrics.
The feature, spotted in the latest version of the WhatsApp beta for iOS, is not yet active but is expected to be available soon.
Passkeys, seen as a replacement for usernames and passwords, use biometrics such as Touch ID or Face ID for authentication, eliminating the need for users to remember credentials.
The passkey feature was previously added to WhatsApp for Android, and it is expected to use Apple's Keychain system on iOS.
Only iPhone models running on iOS 17 will support third party access to passkeys.