US wants cyber partnerships to send ‘coordinated, strategic message’ to adversaries

**Summary:** At the Munich Cyber Security Conference, U.S. National Cyber Director Sean Cairncross urged deeper international and public‑private collaboration in cyberspace, outlining a forthcoming whole‑of‑government U.S. cyber strategy aimed at altering adversary behavior and costs. He emphasized aligning offensive and defensive capabilities, improving information sharing with industry, critiqued certain European regulatory approaches, and advocated for a “clean” technology stack favoring U.S. and allied systems over Chinese tech due to security and governance concerns.