Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

American Cancer Society

Disclosed Mar 1, 20198,716 affectedConfirmed

Official notice

What is known

People affected8,716 (as reported by the organization)
DisclosedMar 1, 2019
DiscoveredJan 31, 2019
HappenedJan 8, 2019
AttackNot stated
Data exposedNamesSocial Security numbers
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: American Cancer Society
Official noticein.gov
Indiana Attorney General 2019 data breach report: American Cancer Society
Official noticemaine.gov
Maine Attorney General breach notice archive: American Cancer Society

Notices filed

Residents of CAMar 1, 2019
California AGCount not stated
Residents of INMar 1, 2019
Indiana AG115 people
Residents of MEMar 1, 2019
Maine AG39 people
History of this record
data_types2026-09-25
[] to ["names","ssn"]by backfillSource
discovered2026-09-25
empty to 2019-01-31by backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 8716by 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.

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