This reminds of a thing that happened on MSN back in the day when I suddenly started to receive random users' chat messages in one of my chats. It only lasted a

This reminds of a thing that happened on MSN back in the day when I suddenly started to receive random users' chat messages in one of my chats. It only lasted a few minutes and it was all different kind of languages. Never heard anything about it but in retrospect it felt very serious. Imagine the same thing happening on Facebook Messenger or Whatsapp.