Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Matson Navigation

Disclosed Oct 30, 202025,000 affectedConfirmed

Official notice

What is known

People affected25,000 (as reported by the organization)
DisclosedOct 30, 2020
DiscoveredOct 14, 2020
HappenedOct 14, 2020
AttackHacking
Data exposedNot stated
SectorOther · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Matson Navigation
Official noticeatg.wa.gov
Washington Attorney General breach notice: Matson Navigation
Official noticejustice.oregon.gov
Oregon DOJ breach notice: Matson Navigation
Official noticein.gov
Indiana Attorney General 2021 data breach report: Matson Navigation

Notices filed

Residents of INOct 30, 2020
Indiana AG56 people
Residents of WADec 1, 2020
Washington AG2,991 people
Residents of CAJan 4, 2021
California AGCount not stated
Residents of ORJan 6, 2021
Oregon DOJ25,000 people

Other breaches at Matson Navigation

Breach, details not statedExposed names, Social Security numbers, government IDs, payment cards, financial details and passwords. Reported to the California AG.14K affectedUSDec 23, 2015
History of this record
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 25000by backfillSource
disclosed2026-09-25
2020-12-01 to 2020-10-30by backfillSource
attack2026-09-25
unknown to hackingby backfillSource
disclosed2026-09-25
2021-01-04 to 2020-12-01by backfillSource
discovered2026-09-25
empty to 2020-10-14by 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 Matson Navigation