ReportedUpdated 3 Nov 2026
Oracle Health Data Breach
Data breach1 source
What happened
The personal and medical information of nearly 20 million people was compromised in a cyberattack on Oracle Health’s legacy Cerner systems early last year, according to a report from the Texas attorney general cited by Bloomberg.
Reported impact
An affected population has not been established in the accepted evidence.
Reported data types
nameshealth data
Source evidence
1Read the original reporting and statements. Multiple articles may rely on the same underlying source.
SecurityWeek01Oracle Health Data Breach Tally Climbs to Nearly 20 Million - SecurityWeek
Published 8 Oct 2026Retrieved 3 Nov 2026
The personal and medical information of nearly 20 million people was compromised in a cyberattack on Oracle Health’s legacy Cerner systems early last year, Bloomberg reported, citing a report from the Texas attorney general.
Attributed reporting
1 more excerpt
your name, Social Security number, and information included within patient medical records, such as medical record numbers, doctors, diagnoses, medicines, test results, images, care and treatment
Unverified allegation
Updates and corrections
- Revision 1
Incident updated.