Facebook has taken down its instant messaging-style system after claims that the system suffers from a serious security flaw. Security flaw allows your Facebook friends to spy on your private live chats as well as see any pending friend requests. Facebook has insisted that privacy is its highest priority but there is growing concern that the site has played fast and loose with the personal information of its 400 million users. The site has encouraged users to share too much private data online and changing privacy settings to be more open”]
Source: https://grahamcluley.com/facebook-disables-chat-security-hole-discovered/