CareFirst BlueCross Blueshield
Disclosed May 20, 201511 years ago1,100,000 affectedConfirmed
Cyber attack on CareFirst exposes data of 1.1 million members
CareFirst BlueCross BlueShield said a cyber attack stole data of about 1.1 million current and former members and others who used its websites.
What is known
| People affected | 1,100,000 (as reported by the organization) |
|---|---|
| Disclosed | May 20, 2015 |
| Happened | Jun 19, 2014 |
| Attack | Hacking |
| Data exposed | Names, Dates of birth, Emails, Insurance, Social Security numbers |
| Sector | Insurance · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: CareFirst BlueCross Blueshieldoag.ca.gov · Official notice | Official notice |
| CareFirst Says Cyber Attack Stole Data of 1.1 Million Usersvox.com · News | News |
| Maine Attorney General breach notice archive: CareFirst BlueCross BlueShieldmaine.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | May 20, 2015 | |
| Researchtotal | May 20, 2015 | 1,100,000 |
| Maine AGresidents of ME | May 20, 2015 | 6 |
History of this record
- 2026-09-25 · data_types: ["names","dob","emails","insurance"] to ["names","dob","emails","insurance","ssn"] · backfill source
- 2026-09-25 · sector: other to insurance · seed source
- 2026-09-25 · attack: unknown to hacking · seed source
- 2026-09-25 · data_types: [] to ["names","dob","emails","insurance"] · seed source
- 2026-09-25 · records_basis: empty to organization · seed source
- 2026-09-25 · records: empty to 1100000 · seed source
- 2026-09-25 · summary: empty to CareFirst BlueCross BlueShield said a cyber attack stole data of about 1.1 million current and former members and others who used its websites. · seed source
- 2026-09-25 · title: empty to Cyber attack on CareFirst exposes data of 1.1 million members · seed source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.