Facebook says sorry for mass outage and reveals why it happened

Facebook has apologized for the mass outage that left billions of users unable to access Facebook, Instagram, WhatsApp and Messenger for several hours.

Internet outage - Wikipedia

Optus reveals cause of massive network outage

Facebook went down Monday, sending users rushing to Twitter

Facebook Explains What Happened in Massive Blackout: 'We're

Clocks & Sleep, Free Full-Text

Facebook - More details about the October 4 outage : r/programming

Facebook is back online after the biggest outage in its history

Facebook down - live updates: Company explains outage as WhatsApp

Facebook, Instagram offline in major outage

Facebook Outage Serves as a Reminder to Diversify

Facebook outage: what went wrong and why did it take so long to