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 Aug 13, 2025 by Sinobi; no regulatory filing has corroborated it yet.
J. Derenzo Co. has been one of New England’s premier site work contractors for over 75 years. The team’s experience ranges from large scale rural site clearing to some of the most complex, tight-site, deep hole excavations in downtown Boston. Our diversity of expertise has been a key driver in amassing a portfolio of work that is second-to-none in the industry.
Breach discovered
Aug 14, 2025
Reported by Leak Site filing
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.