Yes24 ransomware, possible personal-data leak
Add to my breach checkMade public
What leaked4
Hard to replace
- Mobile number
- Home or delivery address
- Username
Permanent
- Full name
To-dos4 · about 45 min in all
- Know the scam pattern: calls and texts that cite these leaked detailsLimits harm from: phishing messages, scam calls
- Register as an exposed person with the FSSLimits harm from: scam calls (opens in a new tab)
- Block new loans and cards in your nameLimits harm from: scam calls (opens in a new tab)
- Remove your address and phone from public profiles and tighten SNS privacyLimits harm from: visits or contact at home
What happened next22 events
Remedy: 3 events
Back to latest- Offered all members a KRW 5,000 voucher, plus a free-shipping coupon for recent buyers and a KRW 5,000 eBook voucher for eBook buyers
- Ticket holders unable to attend shows on 9-11 June refunded 120% of the ticket price as Yes24 deposit; earlier cancellations got an extra 20%
- Ticket cancellation fees waived for bookings made by 10 June and cancelled between 13 and 20 JuneEnded June 20, 2025
- Company
- Yes24
- When it happened
- Company detected it
- Made public
- Notice
- Possible leak
- Affected
- unknown; abnormal member-information lookups reported
How the facts developed
- Notice that, if a leak is confirmed, affected customers will be told individually which items leaked, naming name, ID, contact and address (press)
- Statement naming ransomware as the cause and saying no member data had leaked (press)
Sources
- 개인정보보호위원회 regulator (opens in a new tab)checked October 22, 2026
- ZDNet Korea press, (opens in a new tab)checked October 22, 2026
- ZDNet Korea press, (opens in a new tab)checked October 22, 2026
- 바이라인네트워크 press (opens in a new tab)checked October 22, 2026
- 예스24 company notice (opens in a new tab)checked October 22, 2026