AFAIK all of these incidents happened when OpenAI contracted out to a company called Irregular (https://www.irregular.com/) to run these sandboxed CyberGym tests. They all happened around Mar-June and seem to be from the same collection of agent trials. Since then they already released Astra. Halting now is likely just a way to manage blowback.
I believe this is the case for the incidents minus HF, another HNer informed me as such when I made the same claim, that HF incident was wholly inhouse
This should be the top comment on every one of these godforsaken posts. I don't want to see a single report about OpenAI hacking the UN until Sam Altman addresses the role Irregular played in these attacks. If he can't provide an honest postmortum concerning their business partners, then he's proving why nobody trusts him.
https://alignment.openai.com/misalignment-reports/an-agent-u... happened very recently, and that seems like it might be the reason they halted everything.