The City of Long Beach, CA reported a data breach to the Montana Attorney General. The breach was reported on 2025-04-14. The breach occurred on 11/14/2023. 109 Montana residents were affected.
Affected (this filing): 109
Clustered 5 filings across 4 jurisdictions · filed Apr 14, 2025. View entity profile → Other incidents for this victim →
incident inc_c92ea2ff82644708 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
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 OR WA
HHS OCR · 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
Nov 14, 2023
When the intrusion reportedly occurred, per the linked filings
Nov 14, 2023
Reported by WASHINGTON AG filing
Mar 18, 2025
Reported by OREGON AG filing
The City of Long Beach, CA reported a data breach to the Montana Attorney General. The breach was reported on 2025-04-14. The breach occurred on 11/14/2023. 109 Montana residents were affected.
Affected (this filing): 109
The City of Long Beach, CA reported a data breach to the Oregon Attorney General. The breach was reported on 2025-04-14. The breach occurred during 11/14/2023. The breach was discovered on 3/18/2025. 470,060 individuals were affected. Notice was sent on 4/14/2025.
Affected (this filing): 470,060
The City of Long Beach, CA reported to HHS on 2025-04-14 a Hacking/IT Incident affecting 258,191 individuals. Breached information located on Network Server.
Affected (this filing): 258,191
On or about November 14, 2023, the City of Long Beach, CA experienced a cybersecurity incident in which an unauthorized actor obtained access to the City's network. After an extensive forensic investigation and manual document review, the City determined on March 18, 2025 that certain impacted files containing personal information (including SSNs) may have been accessed and/or acquired. Affected individuals were notified via letter dated April 14, 2025, and offered complimentary Experian IdentityWorks credit monitoring.
The City of Long Beach CA, a government sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2023-11-14 and filed notice on 2025-04-14. 983 Washington residents were affected. 517 days elapsed between awareness and notification. 0 days to identify the breach. 0 days to contain the breach.
Affected (this filing): 983
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.