SK Shieldus security incident history
Hacking, data breaches and other security incidents involving SK Shieldus, with related coverage.
Incidents: 1 · Most recent
SK Shieldus hack leaks 15.1GB of client security data
Impact: 15.1GB of data relating to 120 private companies and numerous public bodies
SK Shieldus was hacked in October 2025, leaking 15.1GB of client-related data. It was found that security monitoring system deployment materials and solution verification materials for 120 private companies and numerous public bodies were leaked through the personal email accounts of two employees that were connected to a honeypot while automatically logged in. The Personal Information Protection Commission (PIPC) launched an investigation, and SK Shieldus began a full review of 80,000 emails.
Related reports: 30 · last report →