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South Korean church cyberattack investigations

News Oct 7, 2026

Two large South Korean churches are investigating suspected intrusions; one says information linked to 850,000 members may have leaked, while AI use remains unproven.

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South Korean church cyberattack investigations timeline

Two large South Korean churches are investigating suspected cyberattacks, Reuters reported on October 7. Yoido Full Gospel Church says its initial review indicates that information linked to 850,000 members may have been compromised, while Sarang Church has formed an emergency response team. Security company Oasis Security said it found church-linked data and attack records on an overseas server, including references to “sub-agents” and apparently automated reports. Those clues prompted a suspicion that AI tools were used, but the reviewed reporting does not establish which tools, if any, participated in the intrusions or confirm the full scope of data exposure.