🐻California State AG
Clustered 3 filings across 3 jurisdictions · filed Aug 3, 2023. View entity profile → Other incidents for this victim →
incident inc_af730af06e454ce4 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Identity (basic) · Government ID
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.
CA MT VT
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Nov 18, 2022 → Nov 29, 2022
When the intrusion reportedly occurred, per the linked filings
Nov 29, 2022
Reported by CALIFORNIA 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.
Hayward Sisters Hospital d/b/a St. Rose Hospital reported that an unknown actor gained unauthorized access to computer systems on November 18, 2022, and acquired files containing personal information including names, Social Security numbers, dates of birth, email addresses, and home addresses. The hospital discovered suspicious activity on November 29, 2022. The incident is contained, and the hospital has engaged forensic specialists, notified law enforcement and HHS, and offered 12 months of credit monitoring.
Hayward Sisters Hospital dba St. Rose Hospital reported a data breach to the Montana Attorney General. The breach was reported on 2023-08-03. The breach occurred from 11/18/2022 to 11/29/2022. 7 Montana residents were affected.
Affected (this filing): 7
Hayward Sisters Hospital dba St. Rose Hospital notified consumers of a data breach where an unknown actor accessed computer systems and acquired files containing patient names. The incident occurred on November 18, 2022, and was discovered on November 29, 2022. The hospital engaged forensic specialists, notified law enforcement and HHS, and is offering 12 months of credit monitoring. No evidence of fraud was found.