Massachusetts State AG
Clustered 5 filings across 5 jurisdictions · filing window May 1, 2026 → May 5, 2026. View entity profile → Other incidents for this victim →
incident inc_8f387395580c4d2c · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
PII · 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.
IN MA ME NH VT
all State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
Jul 26, 2025 → Sep 2, 2025
When the intrusion reportedly occurred, per the linked filings
Sep 2, 2025
Reported by NEW HAMPSHIRE AG filing
Mar 6, 2026
Reported by MAINE AG 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.
Diamond Chemical Co, LLC reported a data security event in Massachusetts involving unauthorized access to customer information. The breach impacted names and other personal data. The company notified law enforcement and state regulators, engaged in remediation reviews, and provided 24 months of complimentary credit monitoring via Kroll to affected individuals.
Diamond Chemical Co, LLC notified the New Hampshire Attorney General of a data event affecting one NH resident. Unauthorized access occurred between July 26, 2025, and September 2, 2025, involving unauthorized copying of files containing names and Social Security Numbers. The company notified law enforcement, engaged third-party specialists, and provided 12 months of credit monitoring through Kroll.
Affected (this filing): 1
Diamond Chemical Co, LLC (East Rutherford, NJ) reported an external system breach (hacking) to the Maine Attorney General. The breach occurred on 07/26/2025 and was discovered on 03/06/2026 — roughly 7 months later, indicating delayed discovery. Only 1 Maine resident was affected; the total nationwide count was not disclosed in this filing. Written consumer notifications were sent on 05/05/2026, and Kroll is providing 12 months of identity restoration services. The specific data elements compromised were not enumerated in the Maine AG entry; the linked notice PDF would contain those details.
Affected (this filing): 1
Diamond Chemical Co., LLC reported a data breach to the Vermont Attorney General. The breach was reported to the AGO on 2026-05-05. The reporting organization type is Other Commercial. 1 Vermont residents were affected. Categories of data breached: Social Security Numbers.
Diamond Chemical Co LLC reported a data breach to the Indiana Attorney General. The breach occurred on 2025-07-26 and was reported on 2026-05-05. 1 Indiana residents were affected. 847 individuals affected in total.
Affected (this filing): 847