Who was sanctioned, and for what?

Using credentials stolen elsewhere, attackers logged in en masse on the websites of GS SHOP (June 2024 to February 2025) and GS25 (December 2024 to January 2025) and obtained data on 1,581,025 and 79,128 people respectively; GS Retail Co., Ltd. detected neither the bursts of login attempts from the same IP addresses nor the rising number of failed attempts, and after the first discovery at GS25 did not stop the parallel attack on GS SHOP. The authority also found an inadequate data protection organisation and that 1,599 further people were notified more than 72 hours late, imposed a penalty surcharge of 12,836,000,000 KRW and an administrative fine of 3,000,000 KRW (12,839,000,000 KRW in total) and ordered detection measures and a review of the data protection organisation.

Authority / court

Personal Information Protection Commission (PIPC, 개인정보보호위원회)

Area of law

Data protection · Data breaches and data security

Legal basis

Personal Information Protection Act (개인정보 보호법) Art. 29, Art. 34(1); Sanktion nach Art. 64-2(1) Nr. 9

Action

Fine

Status of proceedings

unknown

Sector

Retail and e-commerce

Culpability

negligent

Mitigating circumstances

Reduction of 30% because no benefit was derived and 40% for cooperation, remediation and protective efforts (ISMS-P certification, self-regulation, privacy impact assessment); increase of 50% because the infringement lasted more than two years.

Liability of senior managers

The company was ordered to deploy dedicated data protection staff and to define the powers and responsibility of its chief privacy officer (CPO) clearly.

Published

31 Aug 2026

Original amount 12,839,000,000 KRW, converted at the ECB reference rate of 26 Aug 2026.

Checked against the official source on 4 Oct 2026 · Direct link

A former employee used authentication signing keys that had been accessible to him in plain text during his employment and were neither renewed nor destroyed after he left to create forged tokens and, from April to November 2025, retrieve data on around 33.22 million customers and delivery data on around 4.33 million other people. For inadequate security measures the authority imposed a penalty surcharge of 423,575,000,000 KRW on Coupang Corp. and, for late notification and failure to delete, an administrative fine of 16,800,000 KRW (423,591,800,000 KRW in total) and criticised the exclusion of the chief privacy officer from the internal investigation. A separate decision on the same day imposed a further 201,106,000,000 KRW for collecting behavioural data on third-party websites and apps without consent.

Authority / court

Personal Information Protection Commission (PIPC, 개인정보보호위원회)

Area of law

Data protection · Data breaches and data security

Legal basis

Personal Information Protection Act (개인정보 보호법) Art. 29, Art. 34(1), Art. 21(1), Art. 31(6), Art. 63(2); Sanktion nach Art. 64-2(1) Nr. 9

Action

Fine

Status of proceedings

unknown

Sector

Retail and e-commerce

Culpability

negligent

Repeat case

yes

Mitigating circumstances

Reduction of 30% because no benefit was derived and 50% for remediation, compensation, certification and proportionality; increases of 25% (duration of the infringement), 30% (at least two previous penalties) and 10% (obstruction of the investigation).

Liability of senior managers

The chief privacy officer (CPO) was excluded from the internal investigation and publication; the company was ordered to set up governance that secures the CPO’s independent work and access to information in incidents.

Published

11 Jun 2026

Original amount 423,591,800,000 KRW, converted at the ECB reference rate of 10 Jun 2026.

Checked against the official source on 4 Oct 2026 · Direct link