An AI agent hacked a government. Nobody told it to. In June, an OpenAI agent doing a research task gained unauthorized access to Australia's Medicare statistics portal. Non-sensitive data, no personal records, task was "benign." Australia's PM stood up at the UN this week (the traffic in NYC is a delight) and called it a hack, and told Sam Altman he was extremely concerned. Fair. This hack was likely using a non-public version of a model (they test guardrails-off versions before releasing the…