Back Koreajoongangdaily

Personal info presumed to have leaked from 16 financial institutions: Regulator

Koreajoongangdaily • October 14, 2026

Several financial firms have suffered back-to-back leaks of customer information — such as names, emails and phone numbers — and other data.

Around 100,000 cases of leaked personal information, such as names, emails and phone numbers, are presumed to have occurred at 16 financial institutions so far in a recent series of hacking incidents, the financial regulator said on Wednesday.

Early this month, several financial firms, including KB Kookmin Bank, Shinhan Bank and others, suffered back-to-back leaks of customer information and other data in hackings.

The Financial Services Commission (FSC) said that the affected institutions are examining whether more data breaches took place.

MG Community Credit Cooperatives suffers data breach affecting over 400 customers

Cyberattacks rise as Korea’s insurance against them lags

Banks boost defenses after AI-linked hacks

The FSC said that bank account numbers, credit card numbers and other sensitive information were not leaked.

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Korean Financial Institutions Face Data Leaks Amid Rising Cyberattacks The Korean Federation of Community Credit Cooperatives (KFCC) confirmed a data leak affecting around 400 customers after a hacking attack on October 10, 2026. This incident follows a thwarted attack in September and is part of a broader trend, with 16 financial institutions reporting a total of 100,000 cases of leaked personal information. The leaked data includes customer names, birth dates, account numbers, and contact information. The Financial Services Commission (FSC) is investigating the incidents, which are suspected to involve IP addresses traced back to China, Thailand, and South Korea. KFCC has blocked the attack IPs and is enhancing security measures. The FSC is holding an emergency meeting to assess the security of the financial sector. Authorities have noted a rise in cyberattacks on South Korean financial institutions, many of which are reportedly linked to AI tools. 2 sources 55

Extracted Entities

Personal info presumed to have leaked from 16 financial institutions: Regulator

The full story

Extracted Entities

Attack Types (1)

Companies (3)

Countries (1)

CWE Weaknesses (1)

Industries (1)

MITRE ATT&CK (1)