Lee orders thorough probe into data breaches at local banks

President Lee Jae Myung on Sunday ordered a thorough investigation into recent data breaches at financial institutions, as AI-powered cyberattacks increasingly targeted them. Cheong Wa Dae said he was briefed on the incidents and ordered officials to devise countermeasures. The breaches spread from major banks to nonbank lenders, prompting regulators and police to respond.

Shinhan Bank reported a breach on Thursday affecting about 25,000 customers.

KB Kookmin Bank, Hana Bank and BNK Busan Bank also reported breaches on Friday.

The leaked information included customers names, phone numbers, annual income and loan limits, and some resident registration numbers were exposed.

Published Oct 4, 2026 2:21 pm KST

Updated Oct 4, 2026 4:19 pm KST

Financial regulators urge companies to accelerate 'AI attacks responding with AI' security efforts

President Lee Jae Myung speaks during a public event in Sejong, Friday. Joint Press Corps

President Lee Jae Myung on Sunday ordered a thorough investigation into a string of recent data breaches at financial institutions, as artificial intelligence (AI)-powered cyberattacks increasingly target them.

According to Cheong Wa Dae, Lee was briefed on recent data breaches at financial and public institutions and their responses to the incidents.

"The president ordered officials to conduct a thorough investigation and make every effort to devise measures, with a grave awareness of the seriousness of the matter," presidential spokesperson Kang Yu-jung said.

The remarks came after a series of data breaches at major financial firms over the past several days.

Shinhan Bank on Thursday reported a breach affecting about 25,000 customers, followed by similar incidents reported at KB Kookmin Bank, Hana Bank and BNK Busan Bank on Friday.

The leaked information included customers' names and phone numbers, as well as annual income and loan limits. Some customers' resident registration numbers were also exposed.

The breaches have since spread beyond major banks to nonbank financial institutions. Yegaram Savings Bank has also reported a leak of personal information involving about 40,000 customers, while Hyundai Capital said some personal data of 146 housing loan agents had been exposed.

Later in the day, financial regulators convened an emergency meeting with chief executives from across the financial sector to discuss countermeasures.

Financial Services Commission Chairman Lee Eog-weon, center, speaks during a meeting with representatives from across the financial sector about recent cyberattacks at banks at Government Complex Seoul, Sunday. Yonhap

Financial Services Commission (FSC) Chairman Lee Eog-weon and Financial Supervisory Service Gov. Lee Chan-jin chaired the meeting, which brought together representatives from banks, securities firms, insurers, credit card companies, savings banks and fintech companies.

"We are seeing multiple data breaches across the financial sector in a short period of time, involving not only major commercial banks but also savings banks and other finance companies," the FSC chairman said. "The entire industry must take the situation seriously and remain on the highest alert.”

Lee also said financial authorities and companies should maintain a coordinated response, move quickly to protect consumers and provide compensation for any losses, while not ruling out the possibility that AI was used in the attacks.

Authorities have yet to find any indication that sensitive information that could be used for unauthorized payments has been leaked. But they warned of possible secondary damage, including voice phishing using leaked information.

Police have launched an investigation into the series of attacks at major banks amid speculation that AI-powered tools were used.

As cyberattacks become increasingly sophisticated with the rapid development of AI, financial companies are turning to AI technologies to strengthen their defenses.

At Sunday's meeting, regulators urged companies to participate in government-led initiatives, including AI security testing, and accelerate the adoption of AI-based security model.

The hackers behind the Shinhan attack, who are suspected of being based overseas, are believed to have used advanced AI tools to extract customer information, according to industry officials.

Traces of a Chinese-language AI penetration-testing tool were found on a server believed to have been used in the attack against the bank.

The server's HTML title reportedly contained a Chinese phrase meaning "AI autonomous penetration testing console," suggesting a possible link to ARTEX AI, an open-source autonomous penetration-testing system built on a large language model.

How to protect your accounts from AI-powered attacks

Shinhan, Kookmin, Hana data breaches fuel concerns over AI-powered cyberattacks in financial sector

周日，李在明总统下令对近期金融机构数据泄露事件展开彻底调查，因为人工智能驱动的网络攻击正日益成为金融机构的目标。青瓦台表示，他已听取了相关事件的汇报，并指示官员制定应对措施。此次数据泄露事件不仅波及大型银行，还波及非银行贷款机构，促使监管机构和警方采取了应对措施。

新韩银行周四报告称，一起数据泄露事件影响了约 25,000 名客户。

KB国民银行、韩亚银行和BNK釜山银行周五也报告了数据泄露事件。

泄露的信息包括客户姓名、电话号码、年收入和贷款限额，一些居民登记号码也被曝光。

发布于2026年10月4日下午2:21（韩国标准时间）

更新于2026年10月4日下午4:19（韩国标准时间）

金融监管机构敦促企业加快“以人工智能应对人工智能攻击”的安全措施。

李在明总统周五在世宗市出席公开活动并发表讲话。（联合记者团）

周日，李在明总统下令对近期金融机构发生的一系列数据泄露事件进行彻底调查，因为人工智能（AI）驱动的网络攻击正日益成为金融机构的目标。

据青瓦台称，李某听取了有关近期金融和公共机构数据泄露事件及其应对措施的简报。

总统发言人康裕贞表示：“总统已下令官员进行彻底调查，并尽一切努力制定应对措施，他深知此事的严重性。”

此前几天，多家大型金融公司相继发生数据泄露事件。

新韩银行周四报告了一起影响约 25,000 名客户的数据泄露事件，随后 KB 国民银行、韩亚银行和 BNK 釜山银行周五也报告了类似事件。

泄露的信息包括客户姓名、电话号码、年收入和贷款限额。部分客户的居民登记号码也被曝光。

此次数据泄露事件已从大型银行蔓延至非银行金融机构。叶加拉姆储蓄银行也报告称，约4万名客户的个人信息遭到泄露；现代资本则表示，146名住房贷款代理人的部分个人数据被曝光。

当天晚些时候，金融监管机构召集金融业各公司首席执行官召开紧急会议，讨论应对措施。

周日，金融服务委员会主席李玉源（中）在首尔政府大楼与金融界代表举行会议，讨论近期银行遭受的网络攻击事件。（韩联社）

金融服务委员会（FSC）主席李玉源和金融监督院院长李灿镇主持了会议，与会代表包括银行、证券公司、保险公司、信用卡公司、储蓄银行和金融科技公司的代表。

金融服务委员会主席表示：“我们看到金融行业在短时间内发生多起数据泄露事件，不仅涉及大型商业银行，还涉及储蓄银行和其他金融公司。整个行业必须认真对待这一情况，保持高度警惕。”

李还表示，金融监管机构和企业应保持协调一致的应对措施，迅速采取行动保护消费者并赔偿任何损失，同时不排除人工智能被用于攻击的可能性。

当局尚未发现任何迹象表明可用于非法支付的敏感信息已被泄露。但他们警告称，可能存在二次损害，包括利用泄露信息进行语音钓鱼。

警方已对一系列针对大型银行的攻击事件展开调查，外界猜测这些攻击使用了人工智能工具。

随着人工智能的快速发展，网络攻击变得越来越复杂，金融公司正在转向人工智能技术来加强防御。

在周日的会议上，监管机构敦促各公司参与政府主导的各项举措，包括人工智能安全测试，并加快采用基于人工智能的安全模型。

据业内人士透露，疑似身处海外的黑客发动了新韩攻击，他们据信使用了先进的人工智能工具来窃取客户信息。

在据信曾用于攻击该银行的服务器上发现了中文人工智能渗透测试工具的痕迹。

据报道，该服务器的 HTML 标题包含一个中文短语，意思是“AI 自主渗透测试控制台”，这表明它可能与 ARTEX AI 有关联，ARTEX AI 是一个基于大型语言模型构建的开源自主渗透测试系统。

如何保护您的帐户免受人工智能攻击

新韩、国民、韩亚数据泄露事件加剧了人们对金融领域人工智能网络攻击的担忧