🦬Montana State AG
Clustered 7 filings across 7 jurisdictions · filing window Oct 31, 2025 → Nov 5, 2025. View entity profile → Other incidents for this victim →
incident inc_48ac214ec174472c · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
CA IN ME MT NH TX VT
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.
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
Sep 19, 2025
When the intrusion reportedly occurred, per the linked filings
Sep 19, 2025
Reported by CALIFORNIA AG, VERMONT AG, NEW HAMPSHIRE AG filings
Oct 17, 2025
Reported by MAINE AG, TEXAS 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.
Hudson River Partners I L.P. dba The Thayer Hotel reported a data breach to the Montana Attorney General. The breach was reported on 2025-10-31. The breach occurred on 09/19/2025. 11 Montana residents were affected.
Affected (this filing): 11
The Historic Thayer Hotel experienced unauthorized access to its computer systems on September 19, 2025. The incident exposed names combined with driver's license numbers, passport numbers, dates of birth, state ID numbers, and potentially Social Security numbers for US residents. The hotel engaged third-party forensic specialists, notified law enforcement, and is providing 12 months of credit monitoring via Kroll Security. No identity theft or fraud has been observed to date.
Hudson River Partners 1 LP dba The Thayer Hotel reported a data breach to the Indiana Attorney General. The breach occurred on 2025-09-19 and was reported on 2025-11-03. 277 Indiana residents were affected. 33,053 individuals affected in total.
Affected (this filing): 33,053
The Historic Thayer Hotel (Hudson River Partners I L.P.) experienced unauthorized access to its computer systems on September 19, 2025. The breach was discovered on October 17, 2025. Exposed data includes names combined with driver's license numbers, passport numbers, dates of birth, state ID numbers, and for a small number of individuals, Social Security numbers. 86 Maine residents and 33,053 total individuals were affected. Kroll Security provided 12-month credit monitoring.
Affected (this filing): 86
The Historic Thayer Hotel experienced unauthorized access to its computer systems on September 19, 2025. The incident exposed personal information including names combined with driver's license numbers, passport numbers, dates of birth, and state ID numbers. A small number of individuals may have had Social Security numbers impacted. The hotel engaged third-party forensic specialists, notified law enforcement, and is offering 12 months of credit monitoring through Kroll Security to affected individuals.
Hudson River Partners I L. P. d/b/a The Thayer Hotel based in West Point, New York, a business – retail or merchant entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-10-17 and reported on 2025-11-04. 1,826 Texas residents were affected. 33,053 individuals affected in total. Types of information involved: Driver’s License number. Consumers were notified via Posted at company website or special website;Broadcast on Texas-wide Media.
Affected (this filing): 1,826
The Thayer Hotel (dba Hudson River Partners I L.P.) notified the New Hampshire Attorney General of a data security incident on November 5, 2025. Unauthorized access occurred on September 19, 2025, exposing personal information of 174 New Hampshire residents, including driver's license numbers, passport numbers, and dates of birth. The hotel engaged third-party forensic experts and Kroll Security for credit monitoring.
Affected (this filing): 174