Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Aetna

Disclosed Dec 10, 2020484,157 affectedConfirmed

Official notice

What is known

People affected484,157 (as reported by the organization)
DisclosedDec 10, 2020
DiscoveredJul 1, 2020
HappenedJun 24, 2020
AttackNot stated
Data exposedNamesHealthInsurance
SectorInsurance · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Aetna
Official noticeattorneygeneral.delaware.gov
Notice letter filed with the Delaware DOJ: Aetna
Official noticejustice.oregon.gov
Oregon DOJ breach notice: Aetna
Official noticein.gov
Indiana Attorney General 2021 data breach report: Aetna
Official noticein.gov
Indiana Attorney General 2020 data breach report: Aetna

Notices filed

Residents of ORDec 10, 2020
Oregon DOJCount not stated
Residents of CADec 11, 2020
California AGCount not stated
Residents of DEDec 11, 2020
Delaware DOJ1,896 people
Residents of INDec 11, 2020
Indiana AG5,661 people
Residents of INJul 13, 2021
Indiana AG5 people
Residents of ORJul 26, 2021
Oregon DOJ8,664 people

Other breaches at Aetna

Insider breachInsider exposed names and health records. Reported to the HHS archive.775 affectedHealthcareUSFeb 27Breach, details not statedExposed names, health records and insurance details. Reported to the California AG.326K affectedInsuranceUSJul 27, 2022Hacking breachHacking exposed names and health records. Reported to the HHS archive.12K affectedInsuranceUSAug 29, 2017Insider breachInsider exposed names and health records. Reported to the HHS archive.19K affectedInsuranceUSNov 28, 2016Insider breachInsider exposed names and health records. Reported to the HHS archive.6,372 affectedInsuranceUSJul 27, 2010Web site breach may have exposed SSNs of 65,000 Aetna employeesHacking exposed emails and Social Security numbers.Hacking65K affectedInsuranceUSUnverifiedMay 28, 2009
History of this record
source2026-09-25
empty to https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/DB-Year-to-Date-Report-2020.pdfby backfillSource
sector2026-09-25
other to insuranceby backfillSource
disclosed2026-09-25
2020-12-11 to 2020-12-10by backfillSource
data_types2026-09-25
[] to ["names","health","insurance"]by backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 484157by backfillSource
discovered2026-09-25
empty to 2020-07-01by 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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