Kisnet Co., Ltd. — Ransomware Incident Claimed by Brain Cipher
- Victim: Kisnet Co., Ltd.
- Claimed by Brain Cipher
- Date claimed: 2026-05-01
- Country: JP
- Sector: Telecommunication
Kisnet Co., Ltd. is a Japanese internet service provider based in Japan. The company offers broadband and network connectivity services primarily to residential and business customers. Operating within the telecommunications and ISP industry, Kisnet provides internet access solutions in the Japanese market. The company is part of Japan's regional ISP sector, delivering reliable network infrastructure and related services to its subscriber base.