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Data breach

SK Telecom hack exposes personal and SIM data of 23.24 million people

First reported · Last reported · 466 related reports

SK Telecom suffered a hack that exposed personal information, including SIM data, with 23.24 million people confirmed affected. Following the incident, SIM replacements and checks for personal data exposure began, and SK Telecom urged caution over spam and smishing exploiting the incident. The company was fined KRW 134.8 billion over the personal data breach and subsequently received an insurance payout.

Key facts

Affected organization
SK Telecom
Incident type
Data breach
Occurred / detected
Not confirmed
Scale of damage
Personal information and SIM data of 23.24 million people exposed
Cause / method
SIM data exposed through an external hack
Location
South Korea

If your data was exposed

View SK Telecom notice ↗
  1. Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organization’s official website or app.
  2. If you’ve suffered harm, report it. Call 118 (no area code) for privacy violations, contact the police for financial losses, and apply for dispute mediation to seek compensation.Personal Information Infringement Report Center ↗Korean National Police Agency cybercrime report ↗Personal Information Dispute Mediation Committee ↗

Lookup and notice links are official pages found by AI. Make sure the address is on the organization’s official domain before using it.

Timeline

  1. It emerged that a hack at SK Telecom had exposed some SIM data and that the extent of further harm was being assessed.
  2. SK Telecom reported an increase in spam exploiting the security incident and said related advisory text messages would be sent from 114.
  3. The Ministry of Science and ICT determined that the SK Telecom security incident constituted grounds for waiving early termination fees.
  4. A process allowing individuals to check directly whether their personal information had been exposed began.
  5. It emerged that SK Telecom had been fined KRW 134.8 billion over the exposure of personal information belonging to 23.24 million people.
  6. It emerged that Hyundai Marine & Fire Insurance had paid SK Telecom USD 374,000 in insurance compensation related to the personal data breach.

466 related reports

The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organization’s official statements for accurate details.