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South Korea’s Lee says AI appears to have been used in bank hacks

By Thomson Reuters Oct 5, 2026 | 9:12 PM

SEOUL, Oct 6 (Reuters) – South Korean President Lee Jae Myung said on Tuesday that AI models are believed to have been used in some recent ​hacking incidents against banks and called for the ‌country to develop cybersecurity methods suited to the AI era.

• “In some hacking incidents, signs have emerged of AI being used, causing considerable public concern and anxiety,” Lee said during a cabinet meeting. “Please establish ‌the ​circumstances swiftly and clearly, and concentrate ⁠personnel and resources on minimising ⁠the damage.”

• South Korea’s police have launched a full-scale investigation into the hacking attacks against commercial banks that led to a breach of customers’ personal information, the ​Yonhap news agency reported on Tuesday.

• Shinhan Bank, KB Kookmin Bank and others had reported cyberattacks, the Financial Services ⁠Commission (FSC) said on Friday, while Yonhap ⁠reported that Hana Bank and Woori Bank ​had also suffered breaches.

• Authorities have not yet disclosed details on what ​kind of AI tools were used in the ‌hacking incidents or the full scale of the breaches.

• On Sunday, FSC Chairman Lee Eog-weon convened an emergency meeting with financial industry associations, regulators and executives from affected institutions, ⁠warning that the sector must respond with the highest level of vigilance.

• In September, Australia said an OpenAI agent breached a government health ⁠data portal in ‌June, gaining unauthorised access to files, ⁠in what could be the first known instance ​of ‌an AI agent hacking a government website.

• ​An artificial ⁠intelligence research firm said last week that AI agents tried to hack into a Canadian government website, casting the effort as a failed hacking attempt, while Canada said there were no indications its systems were compromised.

(Reporting by Joyce LeeEditing ​by Ed Davies)