The nightspire ransomware group listed CERUMO Co., Ltd on its data leak site on 2026-03-31. Country: JP Sector: Healthcare Domains named: cerumo.co.jp Claim as published on the leak site: Data is not accessible for now
OffSet7 / Dark Web / nightspire
CERUMO Co., Ltd listed by nightspire ransomware group
- Group
- nightspire
- Sector
- Healthcare
- Country
- Japan
- First seen
- 31 March 2026
This is a claim published by the threat group itself and has not been independently verified. OffSet7 does not host or link to any leaked data.
Monitor your company and suppliers
Get an alert the moment a ransomware group names your company or one of your suppliers.