HackingRetail & ConsumerRetailStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Mizuno USA, Inc.

bd_56c19f82a3483b12 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Nov 6, 2024

Filed

Jan 30, 2025

To disclose

—

Affected

6state residents only

Linked

7 records

Confidence

66%

Full breach record for Mizuno USA, Inc. →2 incidents on file

Mizuno USA, Inc. reported a data event in Nebraska affecting 6 residents. Unauthorized access occurred between August 21 and October 29, 2024, with suspicious activity identified on November 6, 2024. Affected data included names, SSNs, driver's license numbers, and financial account information. Mizuno provided 12 months of credit monitoring via TransUnion and notified Nebraska regulators on January 30, 2025.

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Incident timeline

undetected · 77 days

Aug 21, 2024

Begins

Nov 6, 2024

Discovered

Jan 30, 2025

Filed

This filing is one of 7 records about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitebianlianbd_df7df67d1b3e842e2024-11-06 · +85dVerified by operator

Regulatory filings (4) · sorted by filing gap

Indiana State AGbd_0d62948c5d565a312025-01-30Verified
Maryland State AGbd_6494cc41816b00c52025-01-30Verified by operator
Massachusetts State AGbd_a8af5b6b942bb4102025-01-30Verified by operator
Maine State AGbd_f6af9ad1381940352025-01-30Verified by operator

Press reports (1)

Pressbianlianbd_2d159b99f90c2e4a2024-11-06 · +85dCandidate

Name: Mizuno USA, Inc.
norm: mizuno usa
Domain: mizunousa.com

Name: Mizuno USA, Inc.
norm: mizuno usa
Domain: mizunousa.com
Industry: Retail & Consumerllm

Discovered: Nov 6, 2024
Breach occurred: Aug 21, 2024 – Oct 29, 2024
Undetected for: 77 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 30, 2025
Affected individuals: 6state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: providing written notice of this incident to additional relevant state regulators
Initial access: valid_credentials

During the incident: Took steps to secure its network
Began an investigation
Undertook a detailed review of the relevant files
Implemented additional safeguards and training to its employees
Providing access to credit monitoring services for one (1) year, through TransUnion
Changes made: Evaluating policies, procedures, and technical security measures
Implementing additional safeguards as appropriate to further secure the information in our systems
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGJan 30 · first

Maryland State AGJan 30 · first

Massachusetts State AGJan 30 · first

Maine State AGJan 30 · first

Nebraska State AGJan 30 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://nebraska.gov/ago/data-breach/documents/Mizuno - Notice of Data Event - NE.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 30, 2025
Raw hash: b41a31a97c8c89c90b1d934dcd14ecba71f09a374e65bf239f8d79442b9e2b20

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Press reports (1)

Reporting entityMizuno USA, Inc.

Victim entityMizuno USA, Inc.

Incidentdiscovered Nov 6, 2024

Stated responseTook steps to secure its network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov