Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Mattson Technology

Disclosed Mar 17, 2022Confirmed

Official notice

What is known

People affectedNot stated in the sources we have
DisclosedMar 17, 2022
HappenedApr 11, 2023
AttackNot stated
Data exposedNot stated
SectorOther · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Mattson Technology
Official noticeago.vermont.gov
Vermont Attorney General: 2022-03-17 Mattson Technology Data Breach Notice to Consumers

Notices filed

Residents of VTMar 17, 2022
Vermont AGCount not stated
Residents of CAOct 27, 2023
California AGCount not stated
Residents of CASep 24, 2024
California AGCount not stated
History of this record
disclosed2026-09-25
2023-10-27 to 2022-03-17by backfillSource
disclosed2026-09-25
2024-09-24 to 2023-10-27by backfillSource
Added2026-09-25
First recordedby backfillSource

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

Everything about Mattson Technology