Last I heard, they were blaming it on one guy making a change to their gateway. There's no way in such a big IT organization that that could happen. They have processes and change controls, and everything must be tested first in a production-like environment, etc. So I'm not buying the official story they're spinning.
Hey man, who knows, maybe the whole team is doublemasked and double vaxxed. These things happen....more and more LOL