HackingManufacturingManufacturingCapture Stored DataData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)Financial accountMediumContained

NPK International Inc.

bd_5dafe08a5460a76c · schema v1 · pii pii-v2

Severity

Medium

Discovered

Aug 12, 2025

Filed

Sep 11, 2025

To disclose

—

Affected

1state residents only

Linked

4 filings

Confidence

66%

Full breach record for NPK International Inc. →

NPK International Inc. experienced unauthorized network access between Oct 28-29, 2024, resulting in the copying of files containing a Nebraska resident's name, SSN, and financial account info. NPK discovered the breach on Aug 12, 2025, notified law enforcement, engaged forensic firms, and mailed notification on Sep 11, 2025, offering one year of credit monitoring.

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Incident timeline

undetected · 288 days

Oct 28, 2024

Begins

Aug 12, 2025

Discovered

Sep 11, 2025

Filed

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_186aac02909e29342025-09-11Candidate
Massachusetts State AGbd_61b52623fabb9a412025-09-11Verified
Texas State AGbd_a4cc395d665028032025-10-16 · +35dVerified

Name: NPK International Inc.
norm: npk international

Name: NPK International Inc.
norm: npk international
Industry: Manufacturingllm

Discovered: Aug 12, 2025
Breach occurred: Oct 28, 2024 – Oct 29, 2024
Undetected for: 288 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 11, 2025
Affected individuals: 1state-resident count only
Data types: Government IDIdentity (basic)Financial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1041 Exfiltration Over C2 ChannelT1119 Automated Collection
Threat actor: ExternalFinancial

During the incident: Took steps to secure its network
Notified law enforcement
Engaged third-party forensic firms
Mailed a notification letter via U.S. First-Class mail
Offered one year of complimentary credit monitoring, fraud consultation, and identity theft restoration services
Established a dedicated, toll-free call center
Changes made: Implemented additional measures to enhance the security of its network
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 · 4 filings · 4 states

View merged incident ↗

Indiana State AGSep 11 · first

Massachusetts State AGSep 11 · first

Nebraska State AGSep 11 · first · this page

Texas State AG+35d

Pattern: first filing Sep 11 (IN), last Oct 16 (TX) — a 35-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/34d51c4a-1b60-4efc-a5e5-48161c122e4c.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 11, 2025
Raw hash: 2937f06079a0264b4576650a2cc621b1b8e47269d2533d5a6c554a9ee4182041

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityNPK International Inc.

Victim entityNPK International Inc.

Incidentdiscovered Aug 12, 2025

Stated responseTook steps to secure its network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov