On June 23, 2026, the cybersecurity chiefs of all five Five Eyes nations — the United States, United Kingdom, Canada, Australia, and New Zealand — did something they almost never do together: they put their names on the same statement and told governments and businesses to act now. The message was blunt. Frontier AI models are about to reshape both offensive and defensive cyber operations, and the runway is short: "the timeline is not years, it is months." The three-page statement was published...