Clustered 4 filings across 4 jurisdictions · filing window Apr 12, 2018 → Apr 25, 2018. View entity profile → Other incidents for this victim →
incident inc_89d8a703b5f74147 · merge_method human · 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 OR WA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Sep 26, 2017
When the intrusion reportedly occurred, per the linked filings
Mar 28, 2018
Reported by WASHINGTON 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.
Best Buy Co., Inc. reported a data breach to the Montana Attorney General. The breach was reported on 2018-04-12. The breach occurred from 9/26/2017 to 10/12/2017. 711 Montana residents were affected.
Affected (this filing): 711
Best Buy Co, Inc., a business sector entity reported a malware incident to the Washington Attorney General. The organization became aware of the incident on 2018-03-28 and filed notice on 2018-04-13. 8,390 Washington residents were affected. 16 days elapsed between awareness and notification. 183 days to identify the breach. 0 days to contain the breach.
Affected (this filing): 8,390
Best Buy Co., Inc. notified customers that a third-party vendor, [24]7.ai, suffered a cyber intrusion in which malicious code was inserted into its customer service chat software between September 26 and October 12, 2017. The code enabled unauthorized access to payment card information (name, address, card number, expiration date, security code) of BestBuy.com customers. Best Buy publicly disclosed on April 5, 2018 and sent consumer notifications April 12, 2018. Identity Guard credit monitoring offered to affected individuals.
Best Buy Co.,Inc. reported a data breach to the Oregon Attorney General. The breach was reported on 2018-04-25. The breach occurred during 9/26/2017 - 10/12/2017. Notice was sent on 4/13/2018.