CareFirst BlueCross Blue Shield Data Breach History
WebsiteCareFirst BlueCross BlueShield is a major health insurer serving Maryland, Washington D.C., and Northern Virginia with medical, dental, vision, Medicare, and Medicaid plans.
This page shows all data breaches of CareFirst BlueCross Blue Shield. View the complete breach timeline, records exposed, root causes, and AI breach risk score. BreachHistory tracks disclosed data breaches worldwide.
Data Breach Timeline — All CareFirst BlueCross Blue Shield Breaches
- 2015 2015 — CareFirst BlueCross Blue Shield: Hacking, 1100000 records 1.1M records Share
CareFirst BlueCross Blue Shield Data Breach Summary
This page tracks the CareFirst BlueCross Blue Shield data breach history and cybersecurity incidents affecting CareFirst BlueCross Blue Shield (Unknown). BreachHistory currently indexes 1 publicly disclosed or catalogued incident spanning 2015, with approximately 1.1 million records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.
The CareFirst BlueCross Blue Shield breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed.
Largest CareFirst BlueCross Blue Shield Data Breaches
The largest indexed incidents include the 2015 — CareFirst BlueCross Blue Shield: Hacking, 1100000 records. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by CareFirst BlueCross Blue Shield or a regulator. Below is the list of large data breaches:
- 2015 2015 — CareFirst BlueCross Blue Shield: Hacking, 1100000 records — about 1.1M records exposed · Catalogued incident
What Information Was Exposed?
Depending on the incident, exposed data may include health and medical (PHI) records, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.
CareFirst BlueCross Blue Shield Data Breach 2026
At the time of this update, no CareFirst BlueCross Blue Shield data breach has been catalogued for 2026. New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.
What To Do If You Were Affected
If you believe your account may have been involved in a CareFirst BlueCross Blue Shield data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.
This CareFirst BlueCross Blue Shield breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.