The Five Eyes cyber agencies have issued a joint warning that the emergence of frontier artificial intelligence poses an imminent cyberthreat, expected to manifest within months. This advanced technology is predicted to significantly enhance offensive hacking capabilities, thereby amplifying the risk landscape. The agencies are urging leaders to prioritize cyber resilience as a core business risk, emphasizing the need for immediate action. The warning underscores the rapid evolution of AI-powered threats, which will likely outpace traditional security measures. As frontier AI models become more prevalent, organizations will face unprecedented challenges in detecting and mitigating sophisticated attacks. The Five Eyes' warning serves as a stark reminder that cyber threats are no longer a distant concern, but a pressing reality that demands proactive measures1. This warning matters to cybersecurity practitioners as it signals the need for a fundamental shift in risk assessment and mitigation strategies to stay ahead of the evolving threat landscape.