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.

WhatsApp Web, Instagram & Facebook Apps Down: : WhatsApp, Facebook

Facebook is back online after a massive outage that also took down

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WhatsApp, Facebook and Instagram crash: Zuckerberg apologises for

Facebook apologizes for that massive outage, says no user data was

Facebook and Instagram are down for many users

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