Facebook
Facebook currently owns and operates three messaging platforms that all run independently of each other - Facebook Messenger, WhatsApp and Instagram. All three platforms feature their own respective messaging component; Instagram users, for instance, can't use the app to contact users on WhatsApp.
WhatsApp is limiting its users from forwarding single messages no more than five times, in an attempt to stop the spread of fake news through the messaging platform. The service, which had allowed users to forward messages up to 20 times, announced the new policy in Jakarta, Indonesia where the country is holding its general elections.