Ransomware victim disclosure
← All victimsEisai Co., Ltd
Claimed by Atomsilo · listed 4 years ago
Status timeline
- Listed
Dec 21, 2021
- Data leaked
At a glance
- Group
- Atomsilo
- Status
- Data leaked
- Country
- Japan
- Sector
- Healthcare
- Listed on leak site
- Dec 21, 2021
About the victim
AI dossier — public-source company profileEisai Co., Ltd. is a Japanese multinational pharmaceutical company headquartered in Tokyo, Japan, specializing in neurology and oncology therapeutics. The company develops and markets globally recognized drugs including Aricept (donepezil) for Alzheimer's disease and Halaven (eribulin) for breast cancer. Eisai operates across multiple continents and engages in global health initiatives alongside its core drug discovery and manufacturing activities.
- Industry
- Pharmaceutical & Biotechnology
- Address
- 4-6-10 Koishikawa, Bunkyo-ku, Tokyo 112-8088, Japan
- Employees
- 10000+
- Founded
- 1941
Attack summary
Severity: high — Eisai is a large multinational pharmaceutical company with disclosed data publication status, indicating confirmed exfiltration of business data. The pharmaceutical sector likely involves sensitive R&D, clinical trial data, and employee/patient-adjacent records, but the lack of specific data inventory detail prevents a critical classification.The Atomsilo ransomware group claims to have attacked Eisai Co., Ltd. and has published data, indicating confirmed exfiltration; however, the leak post provides no specific details on the volume or nature of the data stolen or whether encryption of systems was also performed.
Data the group says was taken
AI dossier — extracted from the leak post- Undisclosed corporate data
Original description
AI-summarised, not from the leak postEisai Co., Ltd. is a Japanese multinational pharmaceutical company headquartered in Tokyo. Established in 1941, it's one of the leading firms in the field of neurology and oncology. Eisai produces several drugs used globally such as Aricept for Alzheimer's disease and Halaven for breast cancer. Aside from drug creation, Eisai also engages in global health initiatives.
Sources
Source
Indexed 4 years agoThis page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.
