Five Eyes Warn AI Cyber Threats Could Become Reality Within Months

Five Eyes Statement Warns of Imminent Shift in Cybersecurity From AI

“Cyber Risk Is a Core Business Risk and a Leadership Responsibility”

Reuters: Warning Signals Intelligence Agencies’ Concerns Over Anthropic, OpenAI

The Five Eyes intelligence alliance of the US, UK, Canada, Australia and New Zealand warned that cyber threats driven by artificial intelligence could become a reality within months and called for immediate action.

In a joint statement released on July 22, the alliance said frontier AI models are set to fundamentally change cyber capabilities in both offense and defense beyond current industry expectations. It added that the paradigm shift would unfold within months, not years.

The Five Eyes urged leaders to act immediately. It called for assessments of AI-related risks, preparedness and accountability, prioritizing basic cybersecurity practices and control systems, giving cybersecurity leaders full authority and resources, and maintaining active engagement with evolving threat indicators and guidance.

The intelligence agencies said the response must extend across organizations and society as a whole. Cyber risk is no longer simply a technical issue. It is a core business risk and a leadership responsibility.

The statement did not provide specific evidence or examples of AI-based cyberattacks.

The market sees the warning as an extension of broad security concerns that have persisted since the so-called Mythos shock, which fueled fears that AI could fundamentally disrupt the existing security ecosystem.

Still, the statement carries added weight because intelligence agencies directly warned of cybersecurity threats posed by AI.

Reuters said the warning signaled that concerns among global intelligence authorities over advanced AI models such as Anthropic’s Mythos and OpenAI’s GPT 5.5-Cyber had reached a critical level.

The statement did not name any specific model, but it is widely viewed as targeting Anthropic’s Mythos, which has recently been subject to export controls.

Anthropic said on July 12 that the US government had issued export-control guidance fully blocking foreign nationals from accessing Claude Mythos 5 and Claude Fable 5.

South Korea’s government and some companies recently joined Project Glasswing, which offers access to Mythos. But the latest move by the US administration has effectively curbed use of the model.

Park Sang-kyung, Hankyung.com reporter, highseoul@hankyung.com