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January 2, 2023 Verified Sensitive Record Telecommunications

LG Uplus Data Breach

In January 2023, South Korean telecommunications operator LG Uplus (lguplus.com) disclosed a data breach traced to its customer authentication system.

297.1 Thousand
Affected People
6
Data Types
High
Severity
Oct 27, 2026
Last updated

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Exposed Data Types

6
  • Names
  • Dates of birth
  • Phone numbers
  • Email addresses
  • Physical addresses
  • IMEI numbers

Breach Details

Company NameLG Uplus Corp.
SectorTelecommunications
CountrySouth Korea
Websitewww.lguplus.com
Breach DateJanuary 2, 2023
Sourceen.yna.co.kr(opens in a new tab)
Last updatedOctober 27, 2026

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About This Breach

Fined 6.8 billion KRW by South Korea's Personal Information Protection Commission (PIPC) on July 12, 2023, the leak exposed personal records of 297,117 current and former subscribers, including full names, dates of birth, phone numbers, email addresses, physical addresses, and mobile device IMEI/USIM identifiers.

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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