PIH Health ransomware attack shuts down network and leaks personal data
After a ransomware attack on December 1, 2024, PIH Health shut down its network and switched to paper records. The attackers claimed to have stolen data on 17 million patients and threatened to publish personal information, photos and test results, but the scale was not confirmed. In March 2026, PIH Health disclosed a personal data breach that exposed Social Security numbers, health information and other data.
Key facts
- Affected organization
- PIH Health
- Incident type
- Ransomware
- Occurred / detected
- 2024-12-01
- Scale of damage
- Leak of personal information including Social Security numbers and health information; network shutdown
- Cause / method
- Ransomware attack
- Location
- United States
If your data was exposed
Exposed dataNational ID numberHealth & 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
- PIH Health shut down its network and switched to paper records after a ransomware attack.
- The attackers claimed to have hacked 17 million patient records.
- The attackers threatened to publish personal information, photos and test results, and the claimed scale was not confirmed.
- PIH Health disclosed a personal data breach that exposed Social Security numbers, health information and other data.
7 related reports
- PIH Health hospitals targeted in ransomware attack
- Cyber criminals claim they hacked 17 million patient records at PIH Health hospitals
- Hackers threaten to leak data of 17M California patients
- Hackers claim they've obtained 17 million patient records at PIH Health hospitals in SoCal, report says
- Hackers Steal 17M Patient Records in Attack on 3 Hospitals
- Hackers Orchestrate Cyberattack Against PIH Health, Claiming Massive Data Breach
- PIH Health Discloses Data Breach Exposing SSNs, Health Information, and More
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.