Not saying this is anything, but maybe someone else on here will see this and have a lightbulb moment...
All 3 DNS records for Facebook, Whatsapp and Instagram were updated on Sep 22.
https://whois.domaintools.com/facebook.com
https://whois.domaintools.com/whatsapp.com
https://whois.domaintools.com/instagram.com
I also noticed the same date on the other domains:
https://whois.domaintools.com/whatsapp.net
https://whois.domaintools.com/facebook.net
I am sure there are others. This could be just a simple Zuckerberg and Co. had something they changed/updated on that date for the entire FB empire, but I find a massive outage a few days (12) later to be really strange.
I do not have a whois premium account so I am unable to dig much further than this. Anything interesting happen on Sep 22?
Wait, September 22?
That's the same day hackers posted a thread about selling 1.5b users' worth of Facebook data:
https://www.privacyaffairs.com/facebook-data-sold-on-hacker-forum/
Hmmm.
Now THAT is interesting.
Had to ctrl + F "22" to find the author referring to 22/9/21 as the thread date.
Interesting, it looks like those comments have since been deleted.
EDIT: His entire account was deleted, actually.
Eh.. they would have really had to fuck up badly to withdraw the entire AS. I can buy that explanation if a network or a block of nets went off the reservation, but this is not just a simple router config screwup.
The 60 minutes interview was a cover story to distract and potentially offer an explanation for today's outage. It was very cringe.