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'Five Eyes' intelligence alliance warns that new AI models pose urgent cyber risk

Published by Global Banking & Finance Review

Posted on June 22, 2026

2 min read

· Last updated: June 22, 2026

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Five Eyes' Alliance: New AI Models Accelerate Cybersecurity Threats, Warn Officials

AI Technology and the Escalating Cybersecurity Landscape

By Raphael Satter

Urgent Warnings from the Five Eyes Intelligence Alliance

WASHINGTON, June 22 (Reuters) - Cutting-edge artificial intelligence technology is poised to supercharge offensive hacking capabilities and urgent action is needed to face up to the threat, U.S., British, Canadian, Australian and New Zealand officials said on  Monday.

The intelligence alliance commonly known as the "Five Eyes" said in a three-page statement that, "Frontier AI models are anticipated to exceed current industry expectations, fundamentally transforming both offensive and defensive cyber capabilities. The timeline is not years, it is months."

Recommendations for Cyber Defenders

The statement was light on details and mostly restated core cybersecurity advice, such as swiftly patching faulty software and not putting systems online unless necessary. The officials also urged defenders to use AI "to strengthen defence," for example by identifying weaknesses sooner or responding more quickly to incidents.

Concerns Over Advanced AI Models

The warning was another indication of officials' increasing concerns over models such as Anthropic's "Mythos" or OpenAI's "GPT-5.5-Cyber," which are said to allow users to quickly execute complex — and potentially devastating — hacks.

Government Response to AI-Driven Threats

Earlier this month, Anthropic was forced to disable a version of Mythos after the U.S. government ordered it to suspend access to the models for foreign nationals over alleged national security ‌concerns. Around the same time, the U.S. cyber defense agency CISA — which was among those cosigning Monday's statement — reduced the deadlines imposed on government officials to deal with serious digital vulnerabilities in their networks to three days, citing AI threats.

Reporting and Editorial Oversight

(Reporting by Raphael Satter in Washington; Editing by Matthew Lewis)

Key Takeaways

  • Frontier AI models like Mythos and GPT‑5.5‑Cyber may supercharge cyberattacks in the near term, posing an urgent risk.
  • The intelligence alliance emphasizes swift patching, limiting online exposure, and using AI to bolster defense.
  • Anthropic has disabled access to its Fable 5 and Mythos 5 models after a U.S. export‑control order over national security concerns, while CISA now requires fixes for critical vulnerabilities within 72 hours.

Frequently Asked Questions

What is the Five Eyes intelligence alliance?
The Five Eyes is an intelligence alliance comprising the United States, United Kingdom, Canada, Australia, and New Zealand.
Why are new AI models considered a cybersecurity risk?
Officials warn that frontier AI models could supercharge hacking capabilities, enabling complex and potentially devastating cyberattacks.
What actions do Five Eyes officials recommend to mitigate AI-related cyber risks?
They recommend quickly patching software, limiting online exposure of systems, and using AI for defensive measures such as quicker incident response.
Which AI models were specifically mentioned as security concerns?
Anthropic's 'Mythos' and OpenAI's 'GPT-5.5-Cyber' were cited as models that could facilitate powerful hacking.
How recent are the threats posed by new AI models according to officials?
Officials stated the AI-related cyber threats could transform the landscape in a matter of months, not years.

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