Sincere Corporation has fallen victim to a ransomware attack orchestrated by the threat actor thegentlemen, which compromised their operations and potentially endangered sensitive environmental data. The incident impacts Japan.
Incident Details
- Victim: Sincere Corporation
- Sector: Not Found
- Country:
- Actor: thegentlemen
- Source: http://tezwsse5czllksjb7cwp65rvnk4oobmzti2znn42i43bjdfd2prqqkad.onion
- Discovered: 2026-01-21 00:27:51.743441
- Published: 2026-01-20 23:52:47.000000
Information
- The victim is Sincere Corporation, a Japanese environmental services company.
- The actor responsible is the group known as thegentlemen.
- Sincere Corporation operates under the philosophy of “Symbiosis with Nature.”
- The company offers comprehensive solutions in waste management and building maintenance.
- Sincere Corporation’s operations are divided into four main segments: Resource Cycling, Recycling Business, Environmental Improvement and Building Maintenance, and Environmental Consulting.
- Founded in 1969, the company supports Japan’s circular economy.
- It has nationwide operations, including major facilities in Shinagawa and Yokohama.
Disclaimer: This post is based on public claims made by the ransomware group "thegentlemen". I cannot confirm the accuracy of the information. However, I would be happy to share any official statement from the affected organization to provide clarification.