Facebook outage 2021: A simple mistake with global consequences

In October, the internet was shaken by the Facebook outage that affected dozens of big-name companies, as well as millions of brands and businesses that advertise on Facebook’s platform. Because of something as simple as a misconfigured Domain Name System (DNS) record, every device with the Facebook app integration started DDoS-ing recursive DNS resolvers -- DDoS meaning "Distributed Denial of Service." This, in turn, caused overloading in countless cases across the board. You might be thinking to yourself, "So, what? A few sites were offline for a couple of hours." But the outage brought to light other issues. Communications for… [Continue Reading]