Page title background (PC version)Page title background (mobile version)

Practice Areas

Personal Information Lawsuit

A personal information lawsuit refers to a combined civil, criminal, and administrative dispute involving a company that acts as a personal information controller. An AI attorney supports strategy development and integrated response across the entire procedure.

CONTENTS
  • 1. Personal Information Litigation | Definition and Dispute Structure From a Corporate Perspective
    • - The Scope of Personal Information That Companies Must Manage
  • 2. Personal Information Litigation | Key Dispute Types Companies Face
    • - Civil Damages
    • - Administrative Sanctions and Disputes
    • - Criminal Proceedings
  • 3. Personal Information Litigation | A Company's Early Response Strategy
    • - Prevention Is the Best Defense

1. Personal Information Litigation | Definition and Dispute Structure From a Corporate Perspective

Personal information litigation: definition and dispute structure from a corporate perspective

Personal information litigation refers to a series of procedures in which a company (the personal information controller) is held legally accountable by a data subject, a supervisory authority, or an investigative agency based on the assertion that it has violated laws related to personal information protection.

In practice, the procedures below may proceed individually or in parallel, and because a single case can spread simultaneously across civil, criminal, and administrative tracks, an integrated response strategy is needed.

Category

Key Content

Corporate Risk

Breach Report and Fact-Finding

Filing with the KISA report center, requests for submission of materials, on-site inspections

Detection of violations, induced corrective action, possibility of follow-up sanctions

Dispute Mediation

Mediation proposal from the Personal Information Dispute Mediation Committee

Deemed accepted if no notice of acceptance is given within 15 days

Civil Litigation

Claims for damages and statutory damages

Burden of proof, risk of an expanded scope of compensation

Criminal Procedure

Accusation, investigation, indictment, and criminal trial

Criminal liability of executives, employees, and the corporation, reputational risk

Administrative Litigation

Administrative adjudication and administrative litigation against corrective orders, administrative fines, and penalty surcharges

Prolonged sanctions and disclosure risk

The Scope of Personal Information That Companies Must Manage

Personal information refers to information about a living individual that falls under one of the following (Article 2, Item 1 of the Personal Information Protection Act).

Category

Content

Identifying Information

Information by which an individual can be recognized, such as name, resident registration number, and video footage

Combinable Information

Information that is difficult to identify on its own but can be readily combined with other information to identify an individual

Pseudonymized Information

Information processed so that a specific individual cannot be recognized without additional information

A company should classify in advance whether the data it holds and processes falls within the above categories, and it should establish an internal control system that also accounts for the possibility of combination and the risk of re-identification.

2. Personal Information Litigation | Key Dispute Types Companies Face

Personal information litigation: punitive and civil damages, administrative litigation, administrative adjudication

Personal information litigation begins with a breach report and has a complex structure that can spread in stages or in parallel into civil damages, administrative sanctions and litigation, and criminal procedure.

Depending on the nature of the case, a company must respond by accurately distinguishing the legal standards, burden of proof, and level of sanctions that apply in each procedure.

It must also carry out integrated risk management so that one response strategy does not work to its disadvantage in another procedure.

Civil Damages

Under the Personal Information Protection Act, a data subject who suffers harm due to a violation of the Act by a personal information controller may claim damages.

In such cases, a company can hardly avoid liability unless it proves the absence of intent or negligence.

In other words, the structure of the litigation places the substantial burden of proof on the company.

In addition, if personal information is lost, stolen, leaked, forged, altered, or damaged, the data subject may claim statutory damages of up to 3 million won, and this may be recognized regardless of the actual amount of loss.

Going further, where intent or gross negligence is recognized, liability for damages may be expanded up to five times the amount of loss.

Category

Key Content

Impact on the Company

General Damages

A claim for damages is available when loss arises from a violation of the Act

Liability is borne if the company fails to prove the absence of negligence

Statutory Damages

An amount of up to 3 million won may be recognized in cases of leakage, damage, and the like

A risk of damages exists regardless of actual loss

Multiplied (Punitive) Damages

Where intent or gross negligence is recognized, the amount is calculated within a limit of five times the loss

The scope of damages rises sharply where there are management gaps

In particular, courts comprehensively consider factors such as the degree of awareness of intent, the scale of harm, the economic benefit obtained, the period and number of violations, and efforts to remedy the harm and prevent recurrence, so a company must be able to prove not only its response after an incident but also the soundness of its routine operating systems.

A company should design its defense strategy around the following elements.

Key Issue

Evidence the Company Should Prepare

Whether the Act Was Violated

Records of the basis for processing, consent procedures, and compliance with purpose limitation

Absence of Negligence

Access control policies, permission management records, and security review and patch history

Loss and Causation

Analysis of the scope and route of the leakage, and review of any secondary harm

Limitation of the Scope of Damages

Records of blocking, recovery, notification, and recurrence-prevention measures taken after the incident

Rather than organizing materials after a dispute arises, it is important to build a structure in which the routine operating system itself can serve directly as evidence.

Administrative Sanctions and Disputes

When a supervisory authority conducts a fact-finding investigation after a complaint or report of infringement is filed, administrative dispositions such as corrective orders, administrative fines, and penalty surcharges may be imposed.

A company may contest such a disposition through an administrative appeal or administrative litigation if it considers the disposition unlawful or improper.

Because the materials and statements submitted during this process can also affect civil and criminal proceedings, a strategic response is needed.

Stage

Key Issues

Corporate Response Points

Fact-finding investigation

Requests for materials, assessment of whether a violation occurred

Organizing a consistent timeline of logs, policies, contracts, and operational records

Disposition stage

Imposition of corrective orders and penalty surcharges

Reviewing the specificity of the grounds for the disposition, and whether there was an abuse of discretion

Administrative appeal

Contesting the revocation or reduction of the disposition

Reviewing a stay of execution, and a strategy to minimize the impact on the business

Administrative litigation

Claim for revocation of an unlawful disposition

Establishing an integrated strategy that considers the links with civil and criminal proceedings

A response at the administrative stage should be approached from the perspective of “managing the facts,” going beyond reducing the sanction to also account for the risks of later litigation and investigation.

An administrative disposition can also spread into secondary business risks, such as public disclosure, media coverage, and a decline in investor confidence, so a prompt response is needed.

Criminal Proceedings

Wrongfully acquiring personal information, providing it to a third party without consent, or divulging or leaking personal information learned in the course of one’s duties may be subject to criminal punishment.

Relevant Provision

Main Violations

Penalty Level

Personal Information Protection Act, Article 71

Provision to a third party without consent

Imprisonment for up to 5 years or a fine of up to 50 million won

Divulging personal information learned in the course of one’s duties

Unauthorized leak, forgery, or alteration

Personal Information Protection Act, Article 72

Acquisition by false or wrongful means

Imprisonment for up to 3 years or a fine of up to 30 million won

Use beyond the intended purpose

Arbitrary manipulation of an image data processing device

In criminal proceedings, factors such as intent, organized involvement, and whether there was a commercial purpose become key issues, and the direction of the initial statements and submitted materials can significantly affect the later outcome of the trial.

3. Personal Information Litigation | A Company's Early Response Strategy

Personal information litigation corporate early response strategy preventive measures

If you have received contact from an investigative agency, a notice of investigation, a proposed mediation, or service of a complaint in connection with personal information litigation, you should activate the following procedures without delay.

Stage

Key Action

Materials to Secure

Establishing the Facts

Identifying the scope, period, and route of the breach

System logs, access records

Preserving Evidence

Demonstrating that internal controls were in place

Policies, inspection records, outsourcing management materials

Controlling External Response

Operating a single point of contact

Official statement

Implementing Corrective Measures

Preventing the spread of harm

Records of access revocation and strengthened security

In mediation procedures in particular, if you do not respond as to whether you accept the proposed mediation within 15 days of receiving it, you may be deemed to have accepted it, so managing this deadline carefully is very important.

Prevention Is the Best Defense

Personal information litigation is a matter of demonstrating the adequacy of a company's ordinary operating structure.

Inspection Item

What to Confirm

Materials to Submit in a Dispute

Managing the Legal Basis for Processing

Clarifying the basis in consent, contract, or statute

Mapping table of processing bases

Access Control

Minimum privileges, records of privilege revocation

History of privilege changes

Outsourcing Management

Inspection of subcontractors

Outsourcing contracts and inspection reports

Log Preservation

Keeping logs in a readable state

Log preservation policy

Incident Response System

Procedures for notification, containment, and recurrence prevention

Incident response report

AI Data Management

Adequacy of pseudonymization, prevention of re-identification

Documentation of pseudonymization and data combination procedures

Daeryun Law Firm provides a comprehensive strategy that covers investigation response, administrative disputes, defense of damages litigation, and criminal risk management through a one-team system in which attorneys specializing in corporate, criminal, civil, and administrative law collaborate.

In addition, through its digital forensics and electronic evidence analysis infrastructure, the firm supports the securing of integrity for logs and electronic documents as well as data flow analysis, helping companies minimize the scope of their liability on the basis of an explainable compliance and security operating system.

Together with an AI attorney, you may wish to review whether your company's data processing structure is designed to remain explainable even in a dispute situation.

Related Information
Background

Daeryun's Key Strengths

Daeryun's exclusive AI · IT
litigation strategies
Over 260
key members
1,200+ cases
handled monthly

* January 2026 Bar Association Transit Permit Issuance Criteria

*Complies with Korean Bar Association Advertising Regulations Article 4 Paragraph 1

Attorney
Legal consultation booking

All consultations are conducted by specialized lawyers after reviewing the case. It is carried out on a reservation basis to ensure a professional process.We encourage you to make an early reservation for consultation, and request adherence to the scheduled time. We will do our best to provide a satisfying consultation.

Phone
consultation 1800-7905

Available 24/7, 365 days
for consultation requests

Phone booking

KakaoTalk
consultation

KakaoTalk channel

Daeryun Law Firm Attorneys

KakaoTalk booking

Online
consultation

We provide tailored
legal services.

Online booking
Quick Menu

KakaoTalk