Yes24 Suffers Ransomware Attack, Disrupting South Korean Entertainment Industry
South Korea's major online ticketing and book retailing platform, Yes24, was hit by a ransomware attack on June 9, 2025. The attack caused a complete shutdown of its website and app for several days, disrupting online bookings for concerts, e-book access, and community forums. The company apologized for the inconvenience and initiated an investigation with relevant government agencies, including the Personal Information Protection Commission (PIPC). While Yes24 stated it had not yet confirmed external leakage of personal information, it reported suspicious activity involving unauthorized access to customer data.
Signal context
First seen: Jun 9, 2025
Last updated: Jun 26, 2026
Status: Public signal
Key points
- Ransomware attack occurred on June 9, 2025.
- Caused a complete shutdown of Yes24's website and app for days.
- Disrupted online bookings for concerts, e-book access, and community forums.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Information
Likely country: Location not provided
Watch ransomware, endpoint compromise and business interruption exposure.
- Source type: outside the affected organization
Impact area: Confidentiality, Availability
Likely asset: User or customer data
- 26 signals in the same sector
- 100 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
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