🦬Montana State AG
Clustered 3 filings across 2 jurisdictions · filing window May 26, 2022 → Jun 13, 2022. View entity profile → Other incidents for this victim →
incident inc_895797bc100d4a83 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Discovery variance · Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
MT NH
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
Dec 29, 2020
When the intrusion reportedly occurred, per the linked filings
Feb 25, 2022
Reported by NEW HAMPSHIRE 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.
Aon Corporation PLC reported a data breach to the Montana Attorney General. The breach was reported on 2022-05-26. The breach occurred from 12/29/2020 to 2/25/2022. 302 Montana residents were affected.
Affected (this filing): 302
Aon Corporation PLC notified the New Hampshire Attorney General of a cyber event affecting approximately 233 NH residents. Unauthorized access occurred between Dec 29, 2020, and Feb 26, 2022, exploiting a zero-day vulnerability (CVE-2021-27852). The attacker staged and exfiltrated unstructured data from SharePoint and Outlook, including names, SSNs, and driver's license numbers. Aon settled with the attacker, who deleted the data. Aon provided 24 months of credit monitoring and enhanced security controls.
Affected (this filing): 233
Aon PLC reported a data breach to the Montana Attorney General. The breach was reported on 2022-06-13. The breach occurred from 12/29/2020 to 2/25/2022. 250 Montana residents were affected.
Affected (this filing): 250