The social network and the Facebook-owned platforms stopped working around 11:30 a.m. EDT Monday, according to the site Downdetector.com. At around 5:40 p.m., some users were able to access the platforms, but not all functions were back.
Facebook said that “the root cause of this outage was a faulty configuration change” when an engineer doing routine maintenance work issued a command "which unintentionally took down all the connections in our backbone network, effectively disconnecting Facebook data centers globally."
