🦬Montana State AGFirst filing
Filed Sep 22, 2016bd_0bbbe65ac487524c
YAHOO reported a data breach to the Montana Attorney General. The breach was reported on 2016-09-22. The breach occurred from 9/1/2014 to 10/1/2014.
Clustered 2 filings across 2 jurisdictions · filed Sep 22, 2016. View entity profile → Other incidents for this victim →
incident inc_faec28ee321f4ba4 · merge_method deterministic · confidence 100%
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
Sep 1, 2014
When the intrusion reportedly occurred, per the linked filings
YAHOO reported a data breach to the Montana Attorney General. The breach was reported on 2016-09-22. The breach occurred from 9/1/2014 to 10/1/2014.
In late 2014, Yahoo! Inc. suffered a state-sponsored intrusion in which account information for at least 500 million users was stolen. Compromised data included names, email addresses, phone numbers, dates of birth, hashed passwords, and security questions/answers. The breach was publicly disclosed on September 22, 2016. No payment card or bank account data was affected.
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.