Your messages, photos, videos, voice
messages, documents, and calls are now secured with end-to-end
encryption, which means WhatsApp and third parties cant read or
listen to them. Messages are automatically end-to-end encrypted: no
turning on settings or setting up special secret chats to secure
your messages. End-to-end encryption is available when you and the
people you message are on the latest versions of WhatsApp. Learn
more at https://www.whatsapp.com/security.