일본: 국가·지역별 정보 유출 사건

기업명, 국가, 업종, 발생 연도, 공격 방식으로 사건을 검색하고 유출 정보, 피해 규모, 확인 상태, 기업 대응과 출처를 확인하세요.

767건
확인됨

Nagoya Medical Center: staff personal USB with data on 591 patients temporarily lost

On May 22, 2026 a staff member lost a personal USB holding patient data on the way back from a seconded hospital. Transit staff recovered it May 23 and returned it May 27. No leak/misuse found and external exposure is assessed as low, but the hospital disclosed July 17.

조사 중

C-Connect Ink Revolution: payment-app tampering may have leaked 24,166 customer/card records

Possible data leak: Card brands raised concerns Dec 9, 2025; card payments stopped Dec 10 and an investigation began. A vulnerability-driven intrusion had tampered with the payment app, possibly exposing some customers from 2025-04-08 to 2025-12-10. The firm delayed public notice until after investigation results and first published in July 2026 (page id 2026-07-15). No earlier 2025 public disclosure found.

확인됨

K9 Natural Japan: online-shop intrusion leaked 78,763 member records

Police alerted the firm on July 9, 2026 to a possible leak; external access was cut July 10. First notice July 14 cited about 60k under review. Investigation report confirmed 78,763 leaked records and no card leakage.

조사 중

Hachioji Gakuen: ransomware attack may have exposed current/former students’ and related personal data

Possible data leak: First notice Jul 13, 2026 reported ransomware on some servers. Second notice (Sep 30) details Jul 8 intrusion / Jul 10 encryption of files including current/former students, applicants, guardians, staff and retirees. No clear exfiltration traces, but log deletion prevents fully ruling out leakage. No count. First disclosure remains Jul 13.

조사 중

Weleda Japan: personal data may have leaked after official online-shop intrusion

Possible data leak: Third-party intrusion into the official online shop was found; fearing partial personal-data exposure, card payments were paused and an external investigation begun. Details still unknown; a later update also paused direct sales.