kisnet.co.jp
[AI generated] 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.
Incident Details
- Threat Group
- BrainCipher
- Victim / Organization
- kisnet.co.jp
- Website / Domain
- kisnet.co.jp
- Industry Sector
- Telecommunication
- Country / Region
- 🇯🇵 JP
- Date Discovered
- Friday, May 1, 2026
What This Listing Means
Posting on BrainCipher's ransomware leak site typically signals that the threat actor claims to have:
- ▸Gained unauthorized access to the organization's network via phishing, exposed credentials, or an unpatched vulnerability
- ▸Exfiltrated sensitive data — potentially including financial records, PII, customer data, or trade secrets
- ▸Deployed ransomware to encrypt systems and disrupt operations
- ▸Issued a ransom demand with a deadline to publish all stolen data publicly if unpaid
Open Source Investigation
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