HackingManufacturingManufacturingData ExfiltratedTargetedIdentity (basic)Government IDMediumContained

Tekni-Plex, Inc.

bd_7fcdd8deb9fa0b28 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 18, 2024

Filed

Sep 24, 2025

To disclose

44 weeks

Affected

80state residents only

Linked

12 records

Confidence

66%

Full breach record for Tekni-Plex, Inc. →

Tekni-Plex, Inc. notified the New Hampshire Attorney General of a data event affecting 80 NH residents. Unauthorized access occurred between Oct 25 and Dec 7, 2024, discovered Nov 18, 2024. Files containing names and SSNs were accessed/copied. TekniPlex engaged specialists, notified law enforcement, and offered credit monitoring.

J jump to incidentP pin to compareR raw source

Leak gap clock✗ Leak >180d44 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 · 24 days

discovery → filing · 44 weeks / 310 days

Oct 25, 2024

Begins

Nov 18, 2024

Discovered

Sep 24, 2025

Filed

This filing is one of 12 records about the same incident.View merged incident

A leak claim by ransomhub about this victim was first seen 285 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteransomhubbd_c91288859b993ccc2024-12-07 · +291dVerified by operator

Regulatory filings (9) · sorted by filing gap

Nebraska State AGbd_00eb832a77124c332025-09-24Verified
Montana State AGbd_4010e8d6deab75112025-09-24Verified
Maine State AGbd_66595e0e3625e62d2025-09-24Verified
Indiana State AGbd_905f742041b935dc2025-09-24Verified

Show 5 more filings ↓up to 23d gap

Massachusetts State AGbd_c4b8f0bbb08299ff2025-09-24Verified
Vermont State AGbd_c7b3db166a9335ea2025-09-24Verified
Washington State AGbd_cb4b40c9f7f72b962025-09-24Verified
Texas State AGbd_174f7e296b3aea002025-09-26 · +2dVerified
Illinois State AGbd_dabe9b7771d108612025-09-01 · +23dCandidate

Showing first 10 of 11 linked disclosures.

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Tekni-Plex, Inc.
norm: tekni plex
Domain: tekni-plex.com
Industry: Manufacturingllm

Discovered: Nov 18, 2024
Breach occurred: Oct 25, 2024 – Dec 7, 2024
Undetected for: 24 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 24, 2025
Affected individuals: 80state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: Provided written notice to New Hampshire Attorney General

During the incident: Engaged third-party subject matter specialists to review involved data
Notified federal law enforcement about the event
Provided access to credit monitoring services through IDX
Provided impacted individuals with guidance on how to better protect against identity theft and fraud
Changes made: Working to implement additional safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 44 weeks(310 days from discovery to filing)
Compliance flags: Leak >180d
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.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 10 states

View merged incident ↗

Illinois State AGSep 1 · first

Nebraska State AG+23d

Montana State AG+23d

Maine State AG+23d

Indiana State AG+23d

Massachusetts State AG+23d

Vermont State AG+23d

Washington State AG+23d

New Hampshire State AG+23d · this page

Texas State AG+25d

Pattern: first filing Sep 1 (IL), last Sep 26 (TX) — a 25-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 11 — the full spread may be wider.

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/tekni-plex-20250924.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 24, 2025
Raw hash: 2b32a305d710a6e1d81de1017bb8181dd22731ee0858a3cc097dece4f84b3be9

Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityTekni-Plex, Inc.

Incidentdiscovered Nov 18, 2024

Stated responseEngaged third-party subject matter specialists to review involved data

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov