HackingManufacturingManufacturingStolen CredentialsTargetedIdentity (basic)LowContained

Landfill Drilling & Piping, Inc.

bd_d22d8a37f5caf447 · schema v1 · pii pii-v1

Severity

Low

Discovered

Sep 8, 2025

Filed

Nov 12, 2025

To disclose

9 weeks

Affected

2state residents only

Linked

2 filings

Confidence

66%

Full breach record for Landfill Drilling & Piping, Inc. →

Landfill Drilling & Piping, Inc. notified Montana employees of a cybersecurity incident discovered on September 8, 2025. Unauthorized parties accessed files containing employee names and variable data. The company contained the incident, restored systems from backups, and engaged cybersecurity professionals. No evidence of fraud or identity theft was found.

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Incident timeline

discovery → filing · 9 weeks / 65 days

Sep 8, 2025

Discovered

Nov 12, 2025

Filed

vs. sector median

1 wks faster

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

Indiana State AGbd_cc0a349dbd6d947a2025-11-12Verified

Name: Landfill Drilling & Piping, Inc.
norm: landfill drilling piping

Name: Landfill Drilling & Piping, Inc.
norm: landfill drilling piping
Industry: Manufacturingllm

Discovered: Sep 8, 2025
Materiality determined: —
Notification sent: —
Affected individuals: 2state-resident count only
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Proactively taking systems offline
Changing passwords
Deploying advanced security and detection software
Restoring systems from backups
Engagin g leading cybersecurity professionals to assist
Changes made: Implemented additional measures to further improve the security of our systems and practices
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(65 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 ↗

Indiana State AGNov 12 · first

Montana State AGNov 12 · 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://dojmt.gov/wp-content/uploads/2025/11/Consumer-notification-letter-33.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 12, 2025
Raw hash: dcd27be77353f0e20de90d2b23e6f2576d2d378812dec44a65a917469d4632cd

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityLandfill Drilling & Piping, Inc.

Victim entityLandfill Drilling & Piping, Inc.

Incidentdiscovered Sep 8, 2025

Stated responseProactively taking systems offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov