Law note · South Korea

Personal Information Protection Act, sensitive information and biometric data

cite Act No. 10465 (as amended by Act No. 19234, 2023), Art. 23; Enforcement Decree of the Personal Information Protection Act (Presidential Decree No. 34309, Mar. 12, 2024), Art. 18 stage In effect since 2023-09-15 reviewed 2026-08-23

Art. 23 bars processing sensitive information without separate consent or statutory authorization, listing ideology, belief, health, sex life, and trade union or political affiliation directly and delegating further categories to the Enforcement Decree.

Decree Art. 18 adds DNA information, criminal history records, information revealing racial or ethnic origin, and biometric information, defined technology neutrally as data from specific technical processing of physical, physiological, or behavioral characteristics used to uniquely identify a person. That definition covers a faceprint and a voiceprint alike without naming either, and does not exclude an identifier derived from a photo, video, or audio recording.

What it asks of an app

  • An app that derives a faceprint, voiceprint, or other unique biometric identifier from a Korean data subject, including one derived from a photo, video, or audio recording, must treat it as sensitive information under PIPA Art. 23 and obtain separate, specific consent before processing it.

When LexLint raises it

Declared activities: processes_biometrics, processes_voice, trains_models, crawls_web

Primary source: official statute and Enforcement Decree text, KLRI English translation

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