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Yes24 cybersecurity incidents and threat signals
yes24.com
This company page brings together public reporting currently associated with Yes24. It reflects signals published by Shadow Tier and should not be read as a complete incident history.
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June 26, 2026
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Based on all published signals currently linked to Yes24. Affected countries come from victim data; the company country above remains a separate profile fact. Counts describe this reporting set, not overall incident prevalence.
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All published signals involving Yes24
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.
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Questions about Yes24 cybersecurity reporting
What does the Yes24 page include?
It combines a reviewed organization profile with all current published Shadow Tier signals explicitly linked to Yes24.
Does every mention of Yes24 appear here?
No. A signal must contain a reliable company connection and meet the publication criteria; incidental or ambiguous mentions are excluded.
Why can the incident count change?
The page follows current published reporting. Counts change as new evidence is added, classifications are reviewed, or older signals leave the reporting window.