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Japan’s PM orders cybersecurity review to stop Mythos going full CyberZilla

ID: d4f41a85-b5c2-5e87-a605-15592e134605

STIX ID: report--d4f41a85-b5c2-5e87-a605-15592e134605

Feed Name: The Register (Security)

Date Published: 2026-05-12

Date Updated: 2026-05-12

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Japan’s prime minister Sanae Takaichi has instructed a cabinet-level cybersecurity review to evaluate government systems and critical infrastructure readiness following the release of Anthropic’s Mythos, citing fears that frontier AI models could increase the speed and scale of attacks; the article frames this as a policy response and notes differing expert views on Mythos’s actual capabilities rather than reporting any active exploitation.

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