Social EngineeringOtherPhishingStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)LowContained

Hoshino (USA) Inc.

bd_bbaab3d513f3f88e · schema v1 · pii pii-v1

Severity

Low

Discovered

Aug 5, 2024

Filed

Apr 3, 2025

To disclose

34 weeks

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for Hoshino (USA) Inc. →2 incidents on file

Hoshino (U.S.A.) Inc. notified the New Hampshire AG of unauthorized access to two employee email accounts between June-August 2024. The breach likely resulted from phishing, compromising valid credentials. Approximately one NH resident's PII was potentially exposed. Hoshino secured accounts, investigated, notified individuals, and provided credit monitoring via IDX.

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Incident timeline

undetected · 46 days

discovery → filing · 34 weeks / 241 days

Jun 20, 2024

Begins

Aug 5, 2024

Discovered

Apr 3, 2025

Filed

vs. sector median

+26 wks slower

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Nebraska State AGbd_bd1cd3127c0515782025-04-03Verified

Name: Hoshino (USA) Inc.
norm: hoshino usa
Domain: hoshinousainfo.com

Name: Hoshino (USA) Inc.
norm: hoshino usa
Domain: hoshinousainfo.com
Industry: Otherllm

Discovered: Aug 5, 2024
Breach occurred: Jun 20, 2024 – Aug 12, 2024
Undetected for: 46 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 3, 2025
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified Office of the New Hampshire Attorney General
Initial access: phishing_link

During the incident: Secured the two email accounts
Launched an investigation to determine the nature and scope of the activity
Conducted a diligent and comprehensive review process to identify sensitive information
Identified appropriate contact information for the impacted individuals
Notified the potentially impacted individuals
Provided access to credit monitoring services for through IDX
Provided impacted individuals with guidance on how to better protect against identity theft and fraud
Provided written notice of this incident to relevant state regulators
Provided notice of this event to the three major credit reporting agencies
Changes made: Implementing additional safeguards and training for its employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 34 weeks(241 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Nebraska State AGApr 3 · first

New Hampshire State AGApr 3 · 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://mm.nh.gov/files/uploads/doj/remote-docs/hoshino-20250403.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 3, 2025
Raw hash: fbc6edeabfce049a36a04eff5adc0377b976a168ec05fa8f146878998f674f08

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityHoshino (USA) Inc.

Victim entityHoshino (USA) Inc.

Incidentdiscovered Aug 5, 2024

Stated responseSecured the two email accounts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov