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Data breach

North Korean hacking groups steal data from about 10 South Korean defense firms and suppliers

First reported · Last reported · 15 related reports

North Korea's Lazarus, Andariel and Kimsuky hacked about 10 South Korean defense companies and their suppliers, stealing technical data and other material. They got in through poorly secured routes such as subcontractors' servers and employees' email. The damage came to light through a police investigation, and the specific scale of the damage was still being determined.

Key facts

Affected organization
Being confirmed
Incident type
Data breach
Occurred / detected
Not confirmed
Scale of damage
Technical data and other material stolen from about 10 South Korean defense firms and suppliers
Cause / method
Indirect intrusion by North Korea's Lazarus, Andariel and Kimsuky via subcontractor servers, employee email and other routes
Location
South Korea

If your data was exposed

  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 ↗

Timeline

  1. Police disclosed that North Korean hacking groups had hacked South Korean defense firms.
  2. It was disclosed that three North Korean hacking groups had attacked 83 South Korean defense companies, causing damage at about 10 of them.
  3. Intrusion via subcontractor servers and employee email and the theft of technical data came to light, while the specific scale of the damage was still being determined.

15 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.