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Ultra Clean Holdings

Disclosed Nov 9, 20205 years ago6,060 affectedConfirmed

Official notice

What is known

People affected6,060 (as reported by the organization)
DisclosedNov 9, 2020
DiscoveredAug 5, 2020
HappenedAug 3, 2020
AttackNot stated
Data exposedNot stated
SectorOther · US
StatusConfirmed

Sources

Source
California Attorney General breach notice: Ultra Clean Holdingsoag.ca.gov · Official notice
Oregon DOJ breach notice: Ultra Clean Holdingsjustice.oregon.gov · Official notice
Indiana Attorney General 2020 data breach report: Ultra Clean Holdingsin.gov · Official notice

Notices filed

WhereFiledPeople
Indiana AGresidents of INNov 9, 20203
Oregon DOJresidents of ORNov 10, 20205,449
California AGresidents of CADec 23, 2020
History of this record
  • 2026-09-25 · records_basis: empty to organization · backfill source
  • 2026-09-25 · records: empty to 6060 · backfill source
  • 2026-09-25 · disclosed: 2020-11-10 to 2020-11-09 · backfill source
  • 2026-09-25 · disclosed: 2020-12-23 to 2020-11-10 · backfill source
  • 2026-09-25 · discovered: empty to 2020-08-05 · 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.

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