Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Anthem

Disclosed Mar 20, 2013Confirmed

Official notice

What is known

People affectedNot stated in the sources we have
DisclosedMar 20, 2013
HappenedJan 7, 2013
AttackNot stated
Data exposedNamesSocial Security numbers
SectorInsurance · US
StatusConfirmed

Sources

Official noticemaine.gov
Maine Attorney General breach notice archive: Anthem

Notices filed

Residents of MEMar 20, 2013
Maine AG1 person

Other breaches at Anthem

Hacking breachHacking exposed names and health records. Reported to the California AG.6,118 affectedHealthcareUSOct 15, 2021Insider breachInsider exposed names and health records. Reported to the HHS archive.19K affectedInsuranceUSOct 26, 20162014 data warehouse breach of 78.8M people; USD 16M HHS OCR and USD 39.5M statesHacking exposed names, dates of birth, Social Security numbers, addresses, emails, employment records, insurance details, phone numbers and health records. Reported to the California AG.Hacking79M affectedInsuranceUSFeb 4, 2015Tapes with names and SSNs of 196,000 members stolen from vendorVendor breach exposed names and Social Security numbers.Vendor breach196K affectedInsuranceUSUnverifiedJan 26, 2007
History of this record
Added2026-09-25
First recordedby backfillSource

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

Everything about Anthem