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South Korean megachurches probe suspected AI-linked cyberattacks

Regulators say 7 financial firms were hit in a week as investigators examine whether AI tools helped automate the intrusions.

  • On Wednesday, Seoul's Yoido Full Gospel Church and Sarang Church began investigating suspected cyberattacks, with both institutions notifying affected congregants and blocking external access to secure their systems.
  • Cybersecurity firm Oasis Security discovered data and attack records on an overseas server linked to both churches, finding signs of AI tool usage including references to "sub-agents" and automated attack reports.
  • Initial analysis indicates data relating to 850,000 Yoido members may be compromised; Oasis identified a membership system flaw potentially exposing 89,580 accounts, with records including names, birth dates, and national identification numbers.
  • South Korean President Lee Jae Myung stated on Tuesday that authorities believe AI tools were utilized in the cyberattacks, reflecting high-level government concern regarding emerging technology and national cybersecurity threats.
  • These incidents follow recent hacking attacks against South Korean commercial banks that compromised customer information, suggesting escalating vulnerability as cyber threats increasingly target large organizations beyond the financial sector.
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Artex, an open source code security test tool, was designed to help companies evaluate their IT defence systems using security tests to detect their potential weaknesses. On Tuesday, the South Korean government announced that this tool was most likely used as part of hacks on seven financial institutions, including large banks, causing data leaks. As the models are ever more advanced, the ability of artificial intelligence to find new ways to at…

·Issy-les-Moulineaux, France
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in.grin.gr
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Lean Left

Seoul officials say data of 68,000 people was stolen in cyberattacks using an AI agent called Artex., The post Unprecedented cyberattacks on banks with artificial intelligence agent appeared first on in.gr.

·Greece
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Lean Right

A large-scale cyberattack on at least seven South Korean banks has exposed the personal data of at least 68,000 people. Hackers used Artex AI, an open-source AI agent developed in China, in the breach. The incident marks one of the first times autonomous AI tools have been deployed on this scale to disrupt the global banking system.

·Amsterdam, Netherlands (Kingdom of the)
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ddaily.co.kr broke the news on Friday, October 2, 2026.
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