Hyperithm server breach exposes personal information
On 30 October, an outsider gained unauthorised access to business files in cloud storage through Hyperithm's business server, resulting in a personal information leak. The leaked information included names, affiliations, job titles, email addresses, phone numbers, resident registration numbers, and bank account details. The company discovered the incident on 3 November and took action to shut down the server and block accounts, then sent affected individuals a breach notification and an apology on 6 November, warning them to watch for impersonation emails and text messages.
Key facts
- Affected organisation
- Hyperithm
- Incident type
- Data breach
- Occurred / detected
- 2026-10-30
- Scale of damage
- Not confirmed
- Cause / method
- An outsider gained unauthorised access to business files in external cloud storage through a business server
- Location
- South Korea
If your data was exposed
Exposed dataNameEmailPhone numberNational ID numberBank account
- 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
- An outsider gained unauthorised access to business files in cloud storage through a business server, resulting in a personal information leak.
- The company discovered the personal information leak and took emergency measures, including shutting down the server and blocking accounts.
- Affected individuals were sent a breach notification and an apology, along with a warning about impersonation emails and text messages.
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.