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.
This one is not about whose op it is,it is about reaction.
cover. other word is disguise.
If they have some hackers and they can still bite I would be REALLY afraid of internet coming down.
White hats clearly claim they know what is happening and possibly it might be sign done by white hats. Unfortunately if white hats would NOT established total control cabal can start with scenario from "cyber polygon" and pretend BGP protocol was "maliciously updated" by "hackers" and is controlled by "hackers". Consequence of that would be "justification" of applying/causing internet outage.
So: situation can be extremely dangerous now.