HackingManufacturingManufacturingData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountFinancial credentialsHealth (basic)PHIMediumContained

NCH CORPORATION

bd_43ee4726090e9061 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 9, 2026

Filed

May 1, 2026

To disclose

8 weeks

Affected

5state residents only

Linked

18 filings

Confidence

66%

Full breach record for NCH CORPORATION →4 incidents on file

NCH Corporation reported an external system breach (hacking) affecting 5 Maine residents. Unauthorized access occurred between Jan 21 and Feb 25, 2026. NCH discovered the incident on March 9, 2026, and notified law enforcement and engaged third-party cybersecurity professionals. Notification letters were sent on May 1, 2026, offering one year of IDX identity monitoring.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Mar 9, 2026 → Filed with AG May 1, 202653d ⏱ ME AG >30d8 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 · 47 days

discovery → filing · 8 weeks / 53 days

Jan 21, 2026

Begins

Mar 9, 2026

Discovered

May 1, 2026

Filed

This filing is one of 18 about the same incident.View merged incident

A leak claim by cl0p about this victim predates this filing by 160 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteembargobd_1baf0331620d3d062026-03-09 · +52dVerified by operator

Regulatory filings (9) · sorted by filing gap

New Hampshire State AGbd_2a8be8acf60543c62026-05-01Verified by operator
Vermont State AGbd_4194fd4f05a95e972026-05-01Verified by operator
Indiana State AGbd_b1ef5142cadc51242026-05-01Verified by operator
Massachusetts State AGbd_df70bf7a043fe76e2026-05-01Verified by operator

Show 5 more filings ↓up to 147d gap

Nebraska State AGbd_f4b9cb299ae5fa902026-05-01Verified by operator
Texas State AGbd_f1f602a50bc76d642026-05-05 · +4dVerified
Texas State AGbd_36bfa79ae2b695442025-12-09 · +143dVerified
Massachusetts State AGbd_42dfca2c52713f4a2025-12-05 · +147dVerified
New Hampshire State AGbd_468c94ee52fa3fc52025-12-05 · +147dVerified

Showing first 10 of 17 linked disclosures.

Name: NCH CORPORATION
norm: nch
Domain: nch.com
Industry: Industrial Maintenance, Water Treatment, and Hygiene Solutions

Name: NCH CORPORATION
norm: nch
Domain: nch.com
Industry: Industrial Maintenance, Water Treatment, and Hygiene Solutions
Industry: Manufacturingllm

Discovered: Mar 9, 2026
Breach occurred: Jan 21, 2026 – Feb 25, 2026
Undetected for: 47 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 1, 2026
Affected individuals: 5state-resident count only
Data types: Identity (basic)Government IDFinancial accountFinancial credentialsHealth (basic)PHI
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified Maine Attorney General
Initial access: exploit_public_facing

During the incident: Implemented response procedures
Took containment measures
Launched an investigation with the support of third-party cybersecurity professionals
Notified law enforcement
Changes made: Enhanced existing security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(53 days from discovery to filing)
Compliance flags: ME AG >30d · 53dLeak >90d
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: Mar 9, 2026
→ Filed with AG: May 1, 2026
53d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Mar 9, 2026 → Filed with AG: May 1, 2026	53d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 7 states

View merged incident ↗

Massachusetts State AGDec 5 · first

New Hampshire State AGDec 5 · first

Texas State AG+4d

New Hampshire State AG+147d

Vermont State AG+147d

Indiana State AG+147d

Massachusetts State AG+147d

Nebraska State AG+147d

Maine State AG+147d · this page

Texas State AG+151d

Pattern: first filing Dec 5 (MA), last May 5 (TX) — a 151-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 17 — 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/cdd8d442-3aed-47f0-bf15-a4b79e092f1c.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 1, 2026
Raw hash: 36da3335f2edd987f1bea90481a98dc33dbdb032349a10a8f229531a070bdc00

Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entityNCH CORPORATION

Victim entityNCH CORPORATION

Incidentdiscovered Mar 9, 2026

Stated responseImplemented response procedures

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov