WhatsApp bug let one message crash group chats, delete chat history forever

Cybersecurity firm Check Point's researchers have said they detected a vulnerability in WhatsApp that led to group chat crash the moment a 'destructive message' was introduced by the hackers in the chat. It led the entire group chat history being deleted forever. The bug was discovered in August 2019. WhatsApp fixed it in the update for version 2.19.246 and onwards.