Oracle Health hack leaks patient data of about 20 million people
Oracle Health was hacked in 2025, leaking patient data. The US Federal Bureau of Investigation investigated the attack, and leaks affecting healthcare providers were later disclosed. The scale confirmed in October 2026 is about 20 million people.
Key facts
- Affected organization
- Oracle
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- Patient data of about 20 million people
- Cause / method
- Hack of Oracle Health
- Location
- United States
If your data was exposed
Exposed dataHealth & medical data
- Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organization’s official website or app.
Timeline
- The US Federal Bureau of Investigation's investigation into the Oracle cyberattack was reported.
- The hack of Oracle's healthcare services and the leak of patient data were reported.
- A cybersecurity incident involving Oracle Health, a ChristianaCare supplier, was disclosed.
- The scale of the 2025 Oracle Health data leak was determined to be about 20 million people.
Also affected by this incident
Oracle Health/Cerner hack affects about 263,000 linked to Union Health System
↳ Knock-on damage from the Oracle incident · View original incident263KImpact: About 263,000 people
The Oracle Health/Cerner hack affected about 263,000 people linked to Union Health System. The specific information affected and response measures have not been confirmed.
Read on The HIPAA Journal ↗Data breach at Baptist Health South Florida vendor Oracle Health
↳ Knock-on damage from the Oracle incident · View original incidentA data breach occurred at Oracle Health, a vendor of Baptist Health South Florida. The specific scale of the damage, the data leaked and the response relating to Baptist Health South Florida have not been confirmed.
Read on WPBF ↗Cybersecurity incident at ChristianaCare vendor Oracle Health
↳ Knock-on damage from the Oracle incident · View original incidentA cybersecurity incident occurred at Oracle Health, a vendor of ChristianaCare. The specific scale of the damage related to ChristianaCare, the information leaked and the response have not been confirmed.
Read on Delawareonline.com ↗
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Other incidents at Oracle
Oracle hack leads to data breach and extortion demands
A data breach occurred as a result of the Oracle hack. Oracle faced 11 related class action lawsuits in Texas. Extortion demands related to the hack continued afterward.
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Read on JD Supra ↗Oracle legacy server hack leaks customer credentials
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Allegations emerged that Oracle Cloud customer credentials had been stolen, and several customers confirmed that samples provided by the attacker matched their own data. The attacker claimed to have stolen data on 6 million users. Oracle later acknowledged a breach of legacy servers but denied that its flagship cloud platform, OCI, had been compromised.
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The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organization’s official statements for accurate details.