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Japan to seek software vulnerability data from US AI firms amid cyberattack surge, Nikkei reports

By Thomson Reuters Nov 4, 2026 | 11:08 AM

Nov 5 (Reuters) – Japan plans to seek earlier access to information on undisclosed software vulnerabilities from US artificial intelligence developers and ​other overseas technology firms as it ‌moves to strengthen defences against rising cyberattacks, the Nikkei newspaper reported on Thursday.

The government is expected to present an emergency cybersecurity package at a ministerial meeting that could ‌be ​convened as early as Friday, ⁠the report added.

In late ⁠October, Prime Minister Sanae Takaichi instructed officials to devise steps to bolster cyber defences following a recent increase in cyberattacks, according to Nikkei.

Government ​and corporate websites in several countries were disrupted in October after the disclosure of critical ⁠vulnerabilities in the PHP ⁠programming language that underpins much of ​the internet, prompting millions of hacking attempts and forcing ​website operators to protect or temporarily shut ‌down their systems.

As organisations scrambled to mitigate PHP risks, Japan said it would set up a team to simulate cyberattacks using AI to ⁠identify weaknesses in technology systems.

Tokyo will now explore ways to obtain information about serious software vulnerabilities before they ⁠are publicly ‌disclosed to help government agencies and ⁠operators of critical infrastructure respond more ​quickly, ‌Nikkei said.

Japan had recently sought expanded ​access to ⁠advanced AI models from major US developers, including Anthropic and OpenAI, in response to a wave of cyberattacks believed to have been aided by AI, Nikkei added.

(Reporting by Rajasik Mukherjee in Bengaluru; Editing by ​Jonathan Ananda)