Why did Facebook go down? | The Facebook Outage

Around midday Eastern Time on October 4th, 2021 Facebook, along with WhatsApp, Instagram and Oculus, suddenly went down and were unavailable until 5 p.m.

This short interruption in services that we've grown to consider a regular part of our life, demonstrated how much the world has become dependent on a few tech companies, some of which have made controversial moves recently.