HackingManufacturingManufacturingStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

THE CORNWELL QUALITY TOOLS COMPANY

bd_10cb2e9659f8e65f · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 20, 2024

Filed

Sep 4, 2025

To disclose

37 weeks

Affected

616state residents only

Linked

14 filings

Confidence

66%

Full breach record for THE CORNWELL QUALITY TOOLS COMPANY →2 incidents on file

Cornwell Quality Tools notified the Iowa Attorney General of a data security incident discovered on December 20, 2024. An unknown actor gained access to the network around December 12, 2024, potentially acquiring files containing names, Social Security numbers, and financial account numbers for 616 Iowa residents. Cornwell engaged cybersecurity experts, notified the FBI, and sent notification letters to affected individuals on September 4, 2025, offering credit monitoring services.

J jump to incidentP pin to compareR raw source

Iowa clock✓ IA AG ≤5 bday37 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 · 8 days

discovery → filing · 37 weeks / 258 days

Dec 12, 2024

Begins

Dec 20, 2024

Discovered

Sep 4, 2025

Filed

vs. sector median

+26 wks slower

This filing is one of 14 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Montana State AGbd_5e4368163fe0365f2025-09-04Verified
Vermont State AGbd_8cc5949014f4f8a22025-09-04Verified
Washington State AGbd_31d6eaf12139be102025-09-05 · +1dVerified
California State AGbd_1986fff1bf6ebb2d2025-09-08 · +4dVerified

Show 6 more filings ↓up to 5d gap

Maine State AGbd_78319a12494ee29e2025-09-08 · +4dVerified
Oregon State AGbd_c0f0623a831ae9702025-09-08 · +4dVerified
Massachusetts State AGbd_eda1bf635e2e3a042025-09-08 · +4dVerified
New Hampshire State AGbd_fe8fda588e25da302025-09-08 · +4dVerified
South Carolina State AGbd_5efc8f44eb7b3fd12025-09-09 · +5dVerified
Texas State AGbd_9961e666b4f12f422025-09-09 · +5dVerified

Showing first 10 of 13 linked disclosures.

Name: Constangy, Brooks, Smith & Prophete, LLP
norm: constangy brooks smith prophete

Name: THE CORNWELL QUALITY TOOLS COMPANY
norm: the cornwell quality tools
Industry: Manufacturingllm

Discovered: Dec 20, 2024
Breach occurred: Dec 12, 2024
Undetected for: 8 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 4, 2025
Affected individuals: 616state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified the Iowa Attorney GeneralNotified the Federal Bureau of Investigation
Initial access: valid_credentials

During the incident: Engaging cybersecurity experts
Implemented additional security measures to further harden its environment
Notifying the affected individuals
Providing them with steps they can take to protect their personal information
Notified the Federal Bureau of Investigation and will cooperate with any resulting investigation
Offering you the opportunity to enroll in complimentary credit monitoring and identity theft protection services through IDX
Changes made: Implemented additional security measures to further harden its environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 37 weeks(258 days from discovery to filing)
Compliance flags: IA AG ≤5 bday
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 · 11 filings · 11 states

View merged incident ↗

Montana State AGSep 4 · first

Vermont State AGSep 4 · first

Iowa State AGSep 4 · first · this page

Washington State AG+1d

California State AG+4d

Maine State AG+4d

Oregon State AG+4d

Massachusetts State AG+4d

New Hampshire State AG+4d

South Carolina State AG+5d

Texas State AG+5d

Pattern: first filing Sep 4 (MT), last Sep 9 (TX) — a 5-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 13 — 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.iowaattorneygeneral.gov/media/cms/942025_Cornwell_Quality_Tools_3CD16D049E18E.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 4, 2025
Raw hash: 2a0f5abe9bef719f7449020228f88e14acbcfe51458b16e0dcfc81e460ba3615

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityConstangy, Brooks, Smith & Prophete, LLP

Victim entityTHE CORNWELL QUALITY TOOLS COMPANY

Incidentdiscovered Dec 20, 2024

Stated responseEngaging cybersecurity experts

ComplianceIA AG ≤5 bday

Extraction provenanceno artifact recorded

Source provenancewww.iowaattorneygeneral.gov