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Japan and South Korea harden defenses after a wave of cyberattacks that experts tie to AI

Japan convened ministries Oct. 8 and plans warnings to businesses after attacks hit firms including Daiwa Securities, SoftBank and Lawson. South Korea ordered financial firms to complete a 12-point self-assessment after attacks on nine banks. Per Reuters, authorities are still determining how AI was used. CrowdStrike says one attacker used a Chinese AI agent and Claude Code.

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Primary source

Reuters via NBC Newsnbcnews.com/world/asia/south-korea-japan-are-buffeted-hacks-ai-lowers-bar-cybercriminals-rcna602464

Coverage · 9 articles, oldest first

Thursday, October 8, 2026

  1. Semafor

    Companies in Japan, South Korea hit by major cyberattacks

Friday, October 9, 2026

  1. Bloomberg

    Wave of Cyberattacks Prompts Japan to Urge Security Reviews

  2. AP

    apnews.com/article/japan-security-cyberattacks-312fb8860f273d5794da4cc5f44bb0cb

  3. Reuters

    economictimes.indiatimes.com/tech/artificial-intelligence/south-korea-japan-buffeted-by-hacks-as-ai-lowers-bar-for-cybercriminals/articleshow/134807770.cms

  4. Seoul Economic Daily

    en.sedaily.com/international/2026/10/09/japan-urges-firms-to-boost-cybersecurity-as-ai-driven

  5. Nikkei Asia

    asia.nikkei.com/spotlight/cybersecurity/global-cyberattacks-leak-data-on-at-least-320m-people-since-sept.-nikkei-research

  6. Reuters

    nbcnews.com/world/asia/south-korea-japan-are-buffeted-hacks-ai-lowers-bar-cybercriminals-rcna602464

  7. International Business Times

    ibtimes.com/ai-will-make-cyberattacks-more-dangerous-anthropic-has-new-plan-protect-critical-infrastructure-3808425

  8. NewsMax.com

    newsmax.com/newsfront/openai-anthropic-cyberattack/2026/10/09/id/1272290/
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