BlueCross BlueShield of Tennessee Data Breach History
WebsiteBlueCross BlueShield of Tennessee is a not-for-profit health insurer serving 3.4 million members across 14,000 employer groups with medical, Medicare, and Medicaid plans.
This page shows all data breaches of BlueCross BlueShield of Tennessee. View the complete breach timeline, records exposed, root causes, and AI breach risk score. BreachHistory tracks disclosed data breaches worldwide.
Data Breach Timeline — All BlueCross BlueShield of Tennessee Breaches
BlueCross BlueShield of Tennessee Data Breach Summary
This page tracks the BlueCross BlueShield of Tennessee data breach history and cybersecurity incidents affecting BlueCross BlueShield of Tennessee (Unknown). BreachHistory currently indexes 1 publicly disclosed or catalogued incident spanning 2009, with approximately 1.0 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 BlueCross BlueShield of Tennessee 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 BlueCross BlueShield of Tennessee Data Breaches
The largest indexed incidents include the 2009 — BlueCross BlueShield of Tennessee: Lost / stolen device, 1023209 records. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by BlueCross BlueShield of Tennessee or a regulator. Below is the list of large data breaches:
- 2009 2009 — BlueCross BlueShield of Tennessee: Lost / stolen device, 1023209 records — about 1.0M 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.
BlueCross BlueShield of Tennessee Data Breach 2026
At the time of this update, no BlueCross BlueShield of Tennessee 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 BlueCross BlueShield of Tennessee 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 BlueCross BlueShield of Tennessee 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.