Medicus Shuppan
bd_06410d5f3e653a0a · schema v1 · pii pii-v1
Full breach record for Medicus Shuppan →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Thegentlemen on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
medica.co.jp zoominfo.com/c/medicus-shuppan-co-ltd/463963337 is dedicated to providing enjoyable learning experiences for healthcare professionals through a variety of products and services, including seminar books and digital content. The company aims to support the education of medical practitioners and contribute to the future of healthcare. They also focus on sustainability and creating valuable content that serves as a backbone in the medical field. Their intended clients include healthcare professionals, authors, and bookstores
Source provenance
- Source URL
- https://www.ransomware.live/
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Mar 21, 2026
- Raw hash
- 2253f5f0b9ac7152915c6320ba75863ea4ec3e67860fc3b0cccb31f4843a3d3c
Reporting entity
- Name
- thegentlemen
Victim entity
- Name
- Medicus Shuppannorm: medicus shuppan
- Domain
- medica.co.jp
- Industry
- Healthcare
What this source establishes
- Source ceiling
- A leak-site claim can't tell us: discovery date · materiality · notification · affected count · confirmed data types · compliance clock. These stay blank until a regulatory filing or victim disclosure lands.
- Attack vector
- Ransomware· thegentlemen
- Threat actor
- ThegentlemenExternalFinancial
Compliance
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.