Ultra Clean Holdings, Inc.

Ultra Clean Holdings, Inc. notified California AG on Dec 23, 2020 of a data breach, which occurred on Aug 4, 2020. Data exposed: Email address.

Organization: Ultra Clean Holdings, Inc.
Source: California AG · source record
Date reported: Dec 23, 2020
Date(s) of breach: Monday, August 3, 2020Tuesday, August 4, 2020
Residents affected: Not published by this source
Data exposed: Email address
Notice letter: Sample notice (PDF)
First seen by BreachTally: 2026-10-30 16:09 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.