The clearest signal yet about how risky enterprise AI really is did not come from a lab or a regulator. It came from the insurance industry, whose entire business is pricing risk — and which is now quietly refusing to price this one. Major carriers including Chubb, Travelers, Berkshire Hathaway, and W.R. Berkley have filed and won approval for explicit AI exclusions across general-liability, directors-and-officers, and errors-and-omissions policies; the standard industry exclusion form took effect on the first of the year, and regulators have approved more than 80% of the requests. The reason underwriters give is blunt: the risk cannot be priced.

This week handed them two live examples — a GitHub AI agent tricked into leaking private code through a public comment, and a 35-gigabyte data-theft claim against Accenture. Stephen Forte on why "s ...