Unverified threat-actor claim — not a regulatory filing
Attribution, victim identity, and counts shown here derive from a threat actor's public extortion-blog claims, aggregated by ransomware.live. They have not been validated by the victim or any regulator. Treat them as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Unverified claim. Posted to a leak site May 19, 2026 by Payload; no regulatory filing has corroborated it yet.
hs1992.jp is the official website of Kabushiki Gaisha Hodozuka Setsubi, a Japanese company specializing in the design, installation, and maintenance of building utility systems. The enterprise operates in the field of construction and engineering, focusing on water supply, drainage, air conditioning, and heating systems.
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.