Now they blame "wrong update of BGP protocol". https://www.theverge.com/2021/10/4/22709260/what-is-bgp-border-gateway-protocol-explainer-internet-facebook-outage
https://en.wikipedia.org/wiki/Border_Gateway_Protocol
https://www.ciscopress.com/articles/article.asp?p=2738462
Remember cyber polygon scenario: malicious update done by hackers.
Why it is important ? In short it is worse than DNS because it is communication layer between internet subnets. And subnets are for example networks of our internet providers.It looks more critical than DNS as DNS are just changing numbers to domains,but BGP is about what way the messages will be sended.
If they would take control over BGP we can be in deep shit if they would like turn it down.
Migrations: probably steganography or other covert communication if they will leave only controlled servers.
Maybe also some anonymous networks,it depends how their routing works.
The exact way in which this unfolded also shows how it is very possible for the White Hats to use the exact same method - cut off BGP announcement, then bring it back up but point to entirely new DNS servers that redirects Facebook.com to a whole new IP range - and take full control of Facebook when the time is right.
I believe this was a test run by White Hats, following very similar strategy as outlined by the Black Hats
Yeah. Why would bad blackhats take down facebook when facebook is already the tool of the cabal.