The Five Eyes intelligence alliance warns that rapidly advancing frontier AI is accelerating the speed, scale, and sophistication of cyberattacks, shrinking the time between vulnerability discovery and exploitation. They urge corporate boards to treat cybersecurity as a core business risk and to strengthen resilience through faster patching, tighter identity controls, secure‑by‑design practices, and rigorous incident preparedness. The agencies stress that AI is already transforming both offensive and defensive cyber operations, and organizations that fail to adapt will face growing operational and strategic disadvantages.