---
title: "South Korea Launches Large-Scale Audit of 170 Critical IT Infrastructure Facilities Following Series of Cyberattacks on Banks and Crypto Exchange"
description: "The South Korean government is launching a vulnerability audit of 170 critical IT infrastructure facilities after 16 banks suffered cyberattacks. On October 28, data leaks were confirmed by Daishin Securities, Mirae Asset, and crypto exchange Bithumb."
date: 2026-10-28T11:57:58.986Z
lang: en
url: https://xab.info/en/posts/south-korea-audit-170-it-infrastructure-facilities-cyberattacks
tags: [south-korea, cybersecurity, data-breach, financial-sector, crypto-exchange, it-infrastructure, ai-security]
author: "Alexander Buran"
publisher: "XAB.info"
---

# South Korea Launches Large-Scale Audit of 170 Critical IT Infrastructure Facilities Following Series of Cyberattacks on Banks and Crypto Exchange

![User's hand typing on a backlit laptop keyboard against a digital code background](https://xab.info/media/2026/10/28/yuzhnaya-koreya-proverka-170-obektov-it-infrastruktury-kiberataki/yuzhnaya-koreya-proverka-170-obektov-it-infrastruktury-kiberataki-1.webp)

## Key Points

- South Korea prepares vulnerability audit of ~170 critical IT infrastructure facilities in the private sector
- In 2026, 16 commercial banks in the country suffered cyberattacks involving customer data leaks
- On October 28, Daishin Securities, Mirae Asset Global Investments, and Bithumb confirmed data leaks
- Daishin: personal data of 38,490 clients stolen (names, emails, phone numbers)
- President Lee Jae-myung called for cybersecurity suited to the AI era

The South Korean government is preparing to launch a large-scale security vulnerability audit of approximately 170 critical IT infrastructure facilities in the private sector, Yonhap news agency reported, citing a government official. The decision comes amid a series of cyberattacks targeting government agencies and financial institutions that led to commercial bank customer data leaks throughout 2026. South Korea's Ministry of Science and ICT will directly conduct vulnerability assessments at 111 organizations managing such infrastructure, with a particular focus on internet-connected systems such as websites and public servers. The assessment is expected to be completed by the end of the current year.

### Sixteen Banks and Presidential Call for AI Security

The new measures are a direct consequence of a total of 16 commercial banks in the country reporting cyberattacks resulting in customer data leaks in 2026. President Lee Jae-myung publicly expressed concern over these incidents and called for the development of cybersecurity solutions suited to the artificial intelligence era. According to him, traditional approaches to digital infrastructure protection are no longer capable of countering modern threats, and the country must rebuild its entire cybersecurity architecture taking into account the capabilities and risks brought by AI.

### October 28: Three Financial Companies Confirm Leaks

On October 28, three South Korean financial companies — Daishin Securities, Mirae Asset Global Investments, and the Bithumb cryptocurrency exchange — confirmed customer data leaks. Daishin Securities stated that hackers stole the personal information of 38,490 clients, including names, email addresses, and mobile phone numbers. Last week, the company detected signs of unauthorized access to its system, notified affected clients, and engaged with law enforcement agencies for an investigation. Daishin promised to compensate clients for losses in accordance with current legislation if the incident causes any damages.

### Bithumb Crypto Exchange and Regulatory Investigation

Regarding Bithumb, an industry source reported that an external cyberattack resulted in the leak of personal information belonging to a number of the cryptocurrency exchange's clients. Simultaneously, South Korean financial regulators launched an investigation into Mirae Asset Global Investments. Thus, in a single day, three major players in the financial market — a brokerage, an asset management company, and a crypto platform — simultaneously confirmed data compromises, sharply heightening public concerns over the resilience of the financial sector's digital infrastructure.

### Context: Digitalization as a Vulnerability

The series of incidents in 2026 highlights a systemic problem: securities trading, asset management, and cryptocurrency operations in South Korea increasingly rely on digital platforms, turning every vulnerability into a potential channel for mass access to personal data. The large-scale audit of 170 facilities being prepared by Seoul will be the largest audit of private IT infrastructure in the country's history and, according to the authorities, is intended to identify systemic gaps before malicious actors can exploit them in larger attacks. The audit results are expected to form the basis of a new national cybersecurity plan focused on integrating AI tools into threat detection and prevention systems.

## Fact-Check & Sources

- [Южная Корея проводит всесторонний анализ своей ИТ-инфраструктуры после серии кибератак.](https://www.vietnam.vn/ru/han-quoc-tong-kiem-tra-ha-tang-cong-nghe-thong-tin-sau-hang-loat-vu-tan-cong-mang) - Primary source (Chinhphu.vn via vietnam.vn). All key figures and statements correspond to the base text. Mention of 170 facilities, 111 organizations, 16 banks, 38,490 Daishin clients, confirmation of Bithumb and Mirae Asset leaks — all from a single source without contradictions.

## FAQ

### How many IT infrastructure facilities will the South Korean government audit?

The government is preparing to audit approximately 170 critical IT infrastructure facilities in the private sector. The Ministry of Science and ICT will directly assess 111 organizations managing such infrastructure.

### Which companies confirmed data leaks on October 28?

On October 28, three companies confirmed customer data leaks: Daishin Securities (38,490 clients), Mirae Asset Global Investments, and the Bithumb cryptocurrency exchange.

### What happened to Daishin Securities?

Daishin Securities reported that hackers stole the names, email addresses, and mobile phone numbers of 38,490 clients. The company detected signs of unauthorized access last week, notified victims, and is cooperating with law enforcement.

### Why is the government launching this audit?

The audit is a response to a series of 2026 cyberattacks where 16 commercial banks reported breaches with customer data leaks. President Lee Jae-myung publicly called for updating cybersecurity systems to account for AI capabilities.