HackingRetail & ConsumerRetailData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Mizuno USA, Inc.

bd_f6af9ad138194035 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 6, 2024

Filed

Jan 30, 2025

To disclose

12 weeks

Affected

1state residents only

Linked

7 records

Confidence

66%

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

Mizuno USA Inc. reported an external system breach (hacking) affecting one Maine resident. Unauthorized access occurred between August 21, 2024, and October 29, 2024. Mizuno identified suspicious activity on November 6, 2024. Affected data included names, SSNs, driver's license numbers, and financial account information. Notification was sent on January 30, 2025, offering 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Nov 6, 2024 → Filed with AG Jan 30, 202585d ⏱ ME AG >30d12 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 77 days

discovery → filing · 12 weeks / 85 days

Aug 21, 2024

Begins

Nov 6, 2024

Discovered

Jan 30, 2025

Filed

vs. sector median

+3 wks slower

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

A leak claim by bianlian about this victim was first seen 82 days before this filing.View originating leak claim

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
Nebraska State AGbd_56c19f82a3483b122025-01-30Verified
Maryland State AGbd_6494cc41816b00c52025-01-30Verified by operator
Massachusetts State AGbd_a8af5b6b942bb4102025-01-30Verified 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: 1state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Providing written notice of this incident to additional relevant state regulators
Initial access: exploit_public_facing

During the incident: Took steps to secure its network
Began an investigation to determine what occurred
Undertook a detailed review of the relevant files
Provided access to credit monitoring services for one (1) year, through TransUnion
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Changes made: Implementing additional safeguards and training to its employees
Evaluating policies, procedures, and technical security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(85 days from discovery to filing)
Compliance flags: ME AG >30d · 85dLeak >30d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Nov 6, 2024
→ Filed with AG: Jan 30, 2025
85d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Nov 6, 2024 → Filed with AG: Jan 30, 2025	85d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGJan 30 · first

Nebraska State AGJan 30 · first

Maryland State AGJan 30 · first

Massachusetts State AGJan 30 · first

Maine 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/f716f675-ac96-440d-aa1d-bb41ca8e545e.html
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: b6323ee347018c8cb5824151c646fd5f9b03e1ce395236c41a23ea37e6f6d769

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

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov