HackingManufacturingManufacturingVulnerability ExploitStolen CredentialsData ExfiltratedCustomer Data InvolvedMulti-Stage ChainIdentity (basic)Government IDMediumContained

QualiChem Metalworking

bd_680189cb8e14e48c · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 16, 2025

Filed

Apr 29, 2026

To disclose

13 days

Affected · nationwide

6444 in this filing

Linked

6 filings

Confidence

66%

Full breach record for QualiChem Metalworking →2 incidents on file

QualiChem Inc. reported a supplemental data breach to the Maine Attorney General. An external breach occurred between Oct 23 and Dec 16, 2025, affecting 644 individuals nationwide, including 4 Maine residents. Data involved names, SSNs, and driver's licenses. The breach was discovered on April 16, 2026, and notifications were sent on April 29, 2026. Remediation includes system reviews and credit monitoring services.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Dec 16, 2025 → Filed with AG Apr 29, 2026134d ✗ ME AG >90d13 days discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 54 days

discovery → filing · 19 weeks / 134 days

Oct 23, 2025

Begins

Dec 16, 2025

Discovered

Apr 29, 2026

Filed

This filing is one of 6 about the same incident.View merged incident

A leak claim by nitrogen about this victim predates this filing by 91 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitenitrogenbd_cbc78b10eae026882026-01-27 · +91dCandidate

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_4ba42c2c3fe4c5822026-04-29Verified
New Hampshire State AGbd_efde8dbb5a52aa812026-04-29Verified
New Hampshire State AGbd_27e2235a78be2efd2026-03-10 · +50dVerified
Indiana State AGbd_9ab3de5f1d4ff3b92026-03-10 · +50dVerified

Name: QualiChem Metalworking
norm: qualichem metalworking
Domain: qualichem.com

Name: QualiChem Metalworking
norm: qualichem metalworking
Domain: qualichem.com
Industry: Manufacturingllm

Discovered: Dec 16, 2025
Breach occurred: Oct 23, 2025 – Dec 16, 2025
Undetected for: 54 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 29, 2026
Affected individuals: 644state + nationwide
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Submitted initial report to Maine Attorney General on March 10, 2026
Initial access: exploit_public_facing

During the incident: Took steps to further secure our network
Began a forensic investigation
Reported the incident to law enforcement
Offered complimentary, one-year subscription to credit monitoring and identity theft protection services
Established a dedicated, toll-free call center
Changes made: Reviewing its safeguards and the security of its systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 days(13 days from discovery to filing)
Compliance flags: ME AG >90d · 134dME resident >60d · 134dLeak >90d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Dec 16, 2025
→ Filed with AG: Apr 29, 2026
134d 90 days ME AG >90d
Maine
Discovered: Dec 16, 2025
→ Notified: Apr 29, 2026
134d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 16, 2025 → Filed with AG: Apr 29, 2026	134d	90 days	ME AG >90d
Maine	Discovered: Dec 16, 2025 → Notified: Apr 29, 2026	134d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 4 states

View merged incident ↗

New Hampshire State AGMar 10 · first

Indiana State AGMar 10 · first

Massachusetts State AG+50d

New Hampshire State AG+50d

Maine State AG+50d · this page

Pattern: first filing Mar 10 (NH), last Apr 29 (ME) — a 50-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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/6b383aba-a00d-4c70-a528-248474e2606b.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 29, 2026
Raw hash: 9dd9283af2f2b4eb051fa6077aa627777a89f6fa2fb38530e3325bc48344dbe0

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityQualiChem Metalworking

Victim entityQualiChem Metalworking

Incidentdiscovered Dec 16, 2025

Stated responseTook steps to further secure our network

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov