---
title: "Data breach at National Health Insurance Service (NHIS)"
description: "At a parliamentary audit in October 2026, a lawmaker stated that an employee of South Korea's National Health Insurance Service (NHIS) had sold personal information of insureds and their dependents to outside parties. The employee was dismissed in July 2025. According to Korean press, an NHIS execut"
canonical: https://inyourgeek.com/en/fuites-de-donnees/2026-10-16-national-health-insurance-service-nhis
type: fuite-de-donnees
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-10-16
dateModified: 2026-10-16
---
# National Health Insurance Service (NHIS)

Data breach — Low

At a parliamentary audit in October 2026, a lawmaker stated that an employee of South Korea's National Health Insurance Service (NHIS) had sold personal information of insureds and their dependents to outside parties. The employee was dismissed in July 2025. According to Korean press, an NHIS executive acknowledged that the payment received ran to over a hundred million won, and the people affected had not yet been notified of the breach. The organisation says an investigation is ongoing and the affected individuals have not been identified. The specific categories of data sold are not given in the sources consulted.

| Fact | Value |
| --- | --- |
| Disclosed on | October 16, 2026 |
| Sector | Public sector |
| Country | South Korea |
| Cause | Direct intrusion |
| Severity | Low |
| Status | Confirmed |

## Exposed data

- Other personal data

## What you can do

- You can ask the organisation exactly what was exposed about you (right of access), and complain to the DPA if no answer comes within a month.

## Sources

- [KR: NHIS Employee Sold Data, Victims Uninformed for Three Months](https://databreaches.net/2026/10/16/kr-nhis-employee-sold-data-victims-uninformed-for-three-months/) — DataBreaches.net
- ['내 진료기록도 넘겼나?'…건강보험공단 직원, 가입자 정보 거래](https://biz.sbs.co.kr/amp/article/20000340503) — SBS Biz

_Entry built from the cited sources after a corroboration check, then reviewed before publication._

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