What happened to Facebook, WhatsApp, and Instagram?

Facebook has apologized after it was down for many hours on Monday for users all across the world.

WhatsApp and Instagram, which the corporation owns, were also unavailable.

What exactly was the issue?
In a word, Facebook’s systems have ceased communicating with the rest of the internet.

It was as if “someone yanked all the cables from their data centers at the same time and unplugged them from the internet,” according to Cloudflare, a web infrastructure company.

The answer from Facebook was a little more technical.

“Configuration modifications on the backbone routers that coordinate network traffic between our data centers produced difficulties that disrupted this connection,” the company explained. This had a “cascading impact… halting our services,” according to the report.

Zuckerberg apologizes for the Facebook outage that lasted six hours.

So, why were individuals unable to access Facebook?

Hundreds of thousands of networks make up the internet. Large corporations, like as Facebook, have their own bigger networks, which are referred to as autonomous systems.