SK Shieldus hack leaks KB Financial Group security documents
SpilloverSpillover from the SK Shieldus incident · View original incident →KB Financial Group's security documents were leaked in the aftermath of the SK Shieldus hack. Concerns were raised about secondary damage as a result.
Key facts
- Affected organisation
- KB Financial Group
- Original incident
- SK Shieldus hack leaks 15.1GB of client security data
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- Security documents leaked
- Cause / method
- Security documents leaked via the SK Shieldus hack
- Location
- South Korea
If your data was exposed
- Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.
- 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 Centre ↗Korean National Police Agency cybercrime report ↗Personal Information Dispute Mediation Committee ↗
Timeline
- The leak of KB Financial Group security documents via the SK Shieldus hack and concerns about secondary damage came to light.
Original incident
This is spillover from the SK Shieldus incident.
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 →
1 related reports
Other incidents at KB Financial Group
Data leak during KB Financial IT inspection extends regular examination
A data leak occurred during the Financial Supervisory Service's IT inspection of KB Financial Group. The Financial Supervisory Service is reportedly extending its regular examination while also examining the hacking incident. The affected subsidiary and the scale of the leak have not been confirmed.
Related reports: 2 →
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.