SM Entertainment business systems hacked, exposing employee data
SM Entertainment confirmed on 4 November that an external attacker had gained unauthorised access to its business systems and exfiltrated documents. The exposed information included executives' and employees' resident registration numbers, bank account numbers, mobile phone numbers, addresses and contract information. The company apologised and is investigating the exact scale of the damage.
Key facts
- Affected organisation
- SM Entertainment
- Incident type
- Data breach
- Occurred / detected
- 2026-11-04
- Scale of damage
- Personal information of executives and employees and internal documents, including contracts, leaked; scale under investigation
- Cause / method
- An external attacker gained unauthorised access to business systems, including the electronic approval system, and exfiltrated documents
- Location
- South Korea
If your data was exposed
Exposed dataNational ID numberBank accountPhone numberAddress
- 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.
- 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
- SM Entertainment confirmed that an external attacker had gained unauthorised access to its business systems and exfiltrated documents.
- SM Entertainment apologised for the leak of executives' and employees' personal information and said it was investigating the scale of the damage.
Also affected by this incident
DearU staff names, dates of birth and other personal data leaked
↳ Knock-on damage from the SM Entertainment incident · View original incidentImpact: Personal data of executives and employees; number affected undisclosed
Personal data of executives and employees at DearU, an SM Entertainment affiliate, was leaked in connection with a breach of SM Entertainment's business systems. The leaked data included names, dates of birth, internal IDs, contact details, departments, positions and joining dates, among other information; the number of people affected was not disclosed.
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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.