Clustered 3 filings across 3 jurisdictions · filed Dec 22, 2025. View entity profile → Other incidents for this victim →
incident inc_c1581025d2944ae5 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Identity (basic)
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
ME NH VT
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Jun 23, 2025
When the intrusion reportedly occurred, per the linked filings
Aug 28, 2025
Reported by NEW HAMPSHIRE AG, MAINE AG, VERMONT AG filings
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.
Chiesi USA Inc. reported a data breach to the New Hampshire Attorney General on December 22, 2025. The company detected unauthorized access to its U.S. systems on August 28, 2025. The incident affected approximately 1,835 individuals, including 9 New Hampshire residents. Personal information accessed included names, SSNs, driver's license numbers, passport numbers, medical information, financial account information, and usernames/passwords. Chiesi engaged third-party cybersecurity specialists, secured its environment, and is providing 24 months of credit monitoring through Experian.
Affected (this filing): 1,835
Chiesi USA, Inc. reported a data breach affecting one Maine resident, which occurred on June 23, 2025. The breach, described as an external system hacking incident, was discovered on August 28, 2025. The company notified the affected individual on December 22, 2025, and offered 24 months of Experian credit monitoring and identity restoration services.
Affected (this filing): 1
Chiesi USA, Inc. notified Vermont AG of a data breach affecting customer personal information (name plus [Extra1]) due to unauthorized access of internal IT infrastructure. Incident discovered August 28, 2025; investigation complete. Chiesi provided 24 months of credit monitoring via Experian.