GLOBALClaimed by BianLianFirst sightinglinked via operator-confirmed · 100%
Posted to leak site Nov 6, 2024bd_df7df67d1b3e842e
Mizuno Corporation is a Japanese sports equipment and sportswear company, founded in Osaka in 1906 by Rihachi Mizuno.
Clustered 6 filings across 4 jurisdictions · filing window Nov 6, 2024 → Mar 11, 2026. View entity profile → Other incidents for this victim →
incident inc_23206016ca60468a · merge_method human · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Gap between first leak claim and first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Materiality delta · SEC filing delay — no SEC 8-K in this cluster.
PII · Credentials · Financial
IN MD ME
Leak Site · 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
Aug 21, 2024
When the intrusion reportedly occurred, per the linked filings
Nov 6, 2024
Reported by MARYLAND AG, MAINE AG filings
Mizuno Corporation is a Japanese sports equipment and sportswear company, founded in Osaka in 1906 by Rihachi Mizuno.
Mizuno Corporation is a Japanese sports equipment and sportswear company, founded in Osaka in 1906 by Rihachi Mizuno.
Mizuno USA Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2025-01-31 and was reported on 2026-03-11. 1 Indiana residents were affected. 111 individuals affected in total.
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.
Mizuno USA Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2024-08-21 and was reported on 2025-01-30. 8 Indiana residents were affected. 1,329 individuals affected in total.
Affected (this filing): 1,329
Mizuno USA, Inc. notified the Maryland Attorney General of a data event affecting 5 Maryland residents. Unauthorized access occurred between August 21 and October 29, 2024, resulting in the copying of files containing names, SSNs, driver's license numbers, passport numbers, and financial account information. Mizuno secured its network, engaged in investigation, and provided 12 months of credit monitoring to affected individuals.
Affected (this filing): 5
Mizuno USA Inc. identified suspicious activity on November 6, 2024. Investigation revealed an unknown external actor accessed systems and copied files without authorization between August 21, 2024 and October 29, 2024. Potentially affected data includes names, Social Security numbers, driver's license information, financial account information, and passport numbers. One Maine resident was notified on January 30, 2025. Mizuno offered 12 months of credit monitoring via TransUnion/Cyberscout.
Affected (this filing): 1
Affected (this filing): 111