> Is there any sort of assurance that this wouldn't turn into a prosecution, though? It's not obvious to me on that site. Perhaps the CISA doesn't want to deter researchers, but do they get to make the final call?
I don't think any sort of absolute assurance is possible, and if it was given I wouldn't trust it to be permanently binding :-)
This is my intuition from having interacted with CISA, and my impression from talking to policy people: it's not 1993 (or even 2013) anymore, and there's a much better basal understanding of security researchers vs. someone trying to secure a "get out of jail free" card for doing something they shouldn't have. That doesn't mean the government can't mess up here, but I can't remember a prominent example of them throwing the book at a good faith report like this in the past decade.
(Swartz is who I think of as an example of an extreme miscarriage of justice under an overly broad interpretation of the CFAA. And, of course, there could be facts in this situation that I'm not aware of that would motivate a criminal or civil CFAA investigation here. But "pre-dawn raids" aren't really it in situations like this one.)