Skip to content

Cornwell Quality Tools

Disclosed Sep 4, 20251 year ago103,782 affectedConfirmed

Official notice

What is known

People affected103,782 (as reported by the organization)
DisclosedSep 4, 2025
DiscoveredDec 20, 2024
HappenedDec 12, 2024
AttackRansomware
Data exposedNot stated
SectorOther · US
StatusConfirmed

Sources

Source
California Attorney General breach notice: Cornwell Quality Toolsoag.ca.gov · Official notice
Washington Attorney General breach notice: Cornwell Quality Toolsatg.wa.gov · Official notice
Oregon DOJ breach notice: Cornwell Quality Toolsjustice.oregon.gov · Official notice
Vermont Attorney General: 2025-09-04 Cornwell Quality Tools Data Breach Notice to Consumersago.vermont.gov · Official notice
Indiana Attorney General 2025 data breach report: Cornwell Quality Toolsin.gov · Official notice

Notices filed

WhereFiledPeople
Vermont AGresidents of VTSep 4, 2025
Indiana AGresidents of INSep 4, 20252,366
Washington AGresidents of WASep 5, 20253,170
California AGresidents of CASep 8, 2025
Oregon DOJresidents of ORSep 8, 2025103,782

Other breaches at Cornwell Quality Tools

BreachAffected
Disclosed Aug 29, 2023Aug 29, 20233 years ago12K
History of this record
  • 2026-09-25 · records_basis: empty to organization · backfill source
  • 2026-09-25 · records: empty to 103782 · backfill source
  • 2026-09-25 · disclosed: 2025-09-05 to 2025-09-04 · backfill source
  • 2026-09-25 · attack: unknown to ransomware · backfill source
  • 2026-09-25 · disclosed: 2025-09-08 to 2025-09-05 · backfill source
  • 2026-09-25 · discovered: empty to 2024-12-20 · backfill source
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about Cornwell Quality Tools

New breaches by email

Wednesdays, only in weeks with newly disclosed breaches, the largest first.

Double opt-in. Unsubscribe any time.