Altice USA, Inc. reported a data breach to the Montana Attorney General. The breach was reported on 2020-02-06. The breach occurred on 11/13/2019. 1,078 Montana residents were affected.
Affected (this filing): 1,078
Clustered 2 filings across 2 jurisdictions · filed Feb 6, 2020. View entity profile → Other incidents for this victim →
incident inc_3bf7202a5b014427 · 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.
CA MT
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Nov 4, 2019
Reported by CALIFORNIA AG filing
Nov 13, 2019
When the intrusion reportedly occurred, per the linked filings
Altice USA, Inc. reported a data breach to the Montana Attorney General. The breach was reported on 2020-02-06. The breach occurred on 11/13/2019. 1,078 Montana residents were affected.
Affected (this filing): 1,078
Altice USA, Inc. reported a November 2019 phishing incident where unauthorized third parties stole employee email credentials to access mailboxes. Downloaded mailboxes contained reports with PII (names, SSNs, DOBs, driver's licenses) of employees and customers. Altice USA engaged forensic investigators, notified law enforcement, reset passwords, and provided credit monitoring.
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.