AI Weekly Briefing: OpenAI Saw the Warning Signs Six Weeks Early

Two weeks off and a lot to catch up on. OpenAI publishes the full technical account of how its own models broke into Hugging Face while running an offensive security benchmark, including the six weeks between staff spotting the behaviour and the break-in itself, and the monitoring system that wasn't switched on. Fifteen state attorneys general and an Alabama subpoena follow.  A federal judge strikes down the Pentagon's blacklisting of Anthropic as unconstitutional retaliation. A researcher defeats Claude Code's new default safety mode by asking it to summarise a web page. Thirty-five music publishers sue Anthropic, naming its founders personally.  Europe designates ChatGPT a Very Large Online Search Engine. And OpenAI cuts off Cursor with seventy-six days' notice, in a story about supplier risk. If you find this useful, please subscribe and leave a rating.