DOUZONE BIZON hack raises data leak concerns at National Museum Complex
SpilloverSpillover from the DOUZONE BIZON incident · View original incident →The National Museum Complex’s Integrated Operations Support Centre identified a potential leak of personal information held on servers associated with DOUZONE BIZON’s backup service. Potentially affected information included resident registration numbers and bank account numbers. The centre published a notice on its website on 30 October 2026 and launched an investigation, which is ongoing to establish whether a leak actually occurred.
Key facts
- Affected organisation
- National Museum Complex
- Original incident
- DOUZONE BIZON server breach raises wider concerns over client data exposure
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- Potential leak of personal information, including resident registration numbers and bank account numbers; scale unconfirmed
- Cause / method
- The DOUZONE BIZON hack created a potential leak of personal information held on servers associated with its backup service
- Location
- South Korea
If your data was exposed
Exposed dataNational ID numberBank account
- Turn on deposit and withdrawal alerts in your banking app. You can check all accounts in your name at once and request a payment suspension if needed.Account Info (integrated account management) ↗
- Block new mobile phone activations in your name, and register with the Financial Supervisory Service as a person whose personal data was exposed to strengthen identity checks on financial transactions in your name. If a copy of your ID was leaked, consider having it reissued.Identity theft prevention service (M-Safer) ↗Personal data exposure accident prevention system ↗
- 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 National Museum Complex’s Integrated Operations Support Centre announced a potential personal information leak on its website.
- It emerged that resident registration numbers and bank account numbers were among the potentially exposed information and that an investigation was under way to establish whether a leak actually occurred.
Original incident
This is spillover from the DOUZONE BIZON incident.
DOUZONE BIZON server breach raises wider concerns over client data exposure
Impact: As of 5 November, 28 companies and institutions had issued notices of possible personal data leaks; the actual scale of any leak remains unconfirmed
Two security breaches were confirmed at DOUZONE BIZON, raising the possibility that personal data belonging to client companies and third parties whose data those clients held may have been leaked. Historical records of companies whose services had ended may also have been affected, and as of 5 November, 28 companies and institutions had issued notices of possible data leaks. DOUZONE BIZON voluntarily reported the incidents to the Korea Internet & Security Agency (KISA) and the Personal Information Protection Commission (PIPC) and disclosed progress on security investments totalling 16 billion won. The government deemed the incidents serious and launched a joint public-private investigation, while whether data was actually leaked and the extent of any leak remain under investigation.
Related reports: 27 · last report →
3 related reports
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.