WhatsApp's new Chat Lock feature lets users protect chats with biometrics or passcodes

Once a chat has been locked, it can only be opened via the device’s authentication method. — AFP

WhatsApp is rolling out a Chat Lock feature to let Android and iPhone users protect their conversations from prying eyes.

Once a chat has been locked, it can only be opened via the device’s authentication method, including phone passcode or biometrics like fingerprint and facial recognition.