Pinal County Superintendent's Office reported a data breach to the Montana Attorney General. The breach was reported on 2023-11-20. The breach occurred from 9/25/2023 to 9/27/2023. 18 Montana residents were affected.
Affected (this filing):
Clustered 4 filings across 4 jurisdictions · filing window Nov 20, 2023 → Nov 27, 2023. View entity profile → Other incidents for this victim →
incident inc_e32a0522274f4e0b · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
ME MT NH 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 25, 2023
When the intrusion reportedly occurred, per the linked filings
Sep 25, 2023
Reported by VERMONT AG, MAINE AG, NEW HAMPSHIRE AG filings
Pinal County Superintendent's Office reported a data breach to the Montana Attorney General. The breach was reported on 2023-11-20. The breach occurred from 9/25/2023 to 9/27/2023. 18 Montana residents were affected.
Affected (this 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.
Pinal County Superintendent's Office (PCSO) reported a network security incident discovered on September 25, 2023, where employees were locked out of the data processing environment. PCSO restored data from backups and engaged forensic investigators. The incident potentially compromised PII of school employees, including names, SSNs, and bank account details. No forensic evidence confirmed data compromise, but 24 months of credit monitoring was offered.
Pinal County Superintendent's Office reported an external system breach (hacking) occurring between September 25-27, 2023. The incident compromised names and Social Security Numbers of 30,097 individuals, including 14 Maine residents. Written notifications were sent on November 22, 2023, offering 24 months of credit monitoring and identity theft insurance through Cyberscout (TransUnion).
Affected (this filing): 30,097
Pinal County Superintendent’s Office (PCSO) reported a suspected ransomware attack on September 25, 2023, which locked employees out of its data processing environment. The incident affected approximately two New Hampshire residents. PCSO restored data from backups, engaged forensic investigators, and coordinated with law enforcement. Affected individuals received notices offering credit monitoring and identity theft insurance. No forensic evidence confirmed PII compromise, but notices were sent in abundance of caution.
Affected (this filing): 2