Five Eyes Warn AI-Driven Cyber Threats Could Materialize Within Months

Five Eyes Warns of AI-Driven Shift in Cyber Capabilities

"Cyber Risk Is a Core Business Risk and a Leadership Responsibility"

Reuters Says Warning Reflects Rising Concern Over Anthropic and OpenAI

The Five Eyes intelligence alliance of the U.S., the U.K., Canada, Australia and New Zealand warned that cybersecurity threats driven by artificial intelligence could become reality within months and called for immediate action.

In a joint statement issued on July 22, the group said frontier AI models are likely to fundamentally reshape offensive and defensive cyber capabilities beyond current industry expectations.

"This paradigm shift will happen in months, not years," it said.

The Five Eyes urged national 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 based on evolving threat indicators and guidance.

The intelligence agencies added that organizations and society as a whole must respond.

"Cyber risk is no longer just a technical issue. It is a core business risk and a leadership responsibility," they said.

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

Markets view the warning as an extension of broader security concerns that have persisted since the so-called "Mythos shock," which fueled fears that AI could upend the existing security ecosystem.

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

Reuters said the warning signaled that concern 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. Even so, it is widely viewed as targeting Anthropic's Mythos, which has recently been hit by export controls.

Anthropic said on July 12 that the U.S. government had issued export-control guidance fully blocking foreign access to Claude Mythos 5 and Claude Fable 5.

South Korea's government and some companies recently joined Project Glasswing, which provides access to Mythos. But the latest action by the U.S. administration has effectively curbed use of the model.

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