How to lock WhatsApp chats so nobody else can see them on your phone

If you occasionally hand your phone to someone else and want to make sure certain messages can't be seen, you may want to lock individual chats in WhatsApp to keep them away from prying eyes. LOS ANGELES: If you occasionally hand your phone to someone else and want to make sure certain messages can't be seen, you may want to lock individual chats in WhatsApp to keep them away from prying eyes. To activate the feature, press and hold the c... [1034 chars] Originally reported by The Star. Read the full story at the original source for complete details and analysis.