🦬Montana State AG
Clustered 3 filings across 3 jurisdictions · filing window Apr 17, 2018 → Apr 20, 2018. View entity profile → Other incidents for this victim →
incident inc_c7cfea95bc894c3d · merge_method human · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
CA MT OR
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
Earliest sighting first · deep chronology in Litigation Timeline
Sep 26, 2017
When the intrusion reportedly occurred, per the linked filings
Oct 12, 2017
Reported by CALIFORNIA AG filing
Apr 10, 2018
Reported by OREGON AG 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.
Grainger, Inc. reported a data breach to the Montana Attorney General. The breach was reported on 2018-04-17. The breach occurred from 9/26/2017 to 10/12/2017. 65 Montana residents were affected.
Affected (this filing): 65
W.W. Grainger Inc. reported a data breach to the Oregon Attorney General. The breach was reported on 2018-04-20. The breach occurred during 9/26/2017 - 10/12/2017. The breach was discovered on 4/10/2018. 17,902 individuals were affected. Notice was sent on 4/18/2018.
Affected (this filing): 17,902
W.W. Grainger, Inc. reported a third-party data breach involving its online chat service provider, [24]7.ai. The incident occurred between September 26, 2017, and October 12, 2017, potentially exposing credit card numbers, security codes, expiration dates, names, and addresses of customers who used guest checkout. Grainger engaged forensic experts, notified law enforcement and credit card companies, and offered one year of identity monitoring via Kroll.