Oracle Health Data Breach Affects Nearly 20 Million People

A cyberattack on Oracle Health's legacy Cerner systems affected nearly 20 million people, according to Bloomberg citing a Texas attorney general report — far more than earlier filings suggested. The breach occurred after January 22, 2025, was discovered on February 20, 2025, and involved stolen customer credentials.

• Nearly 20 million people affected in the Oracle Health Cerner breach
• Breach occurred after January 22, 2025, discovered on February 20, 2025
• 2,992,244 Texans and about 283,000 South Carolina residents affected
• Could rank among the largest US healthcare data breaches on record