Prospect Medical Holdings

2 breaches1.5M affected in allHealthcare

Hacking breachHacking exposed names and health records. Reported to the California AG.1.3M affectedHealthcareUSSep 29, 2023 Hacking breachHacking exposed names and health records. Reported to the HHS archive.177K affectedHealthcareUSAug 14, 2020

About

Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

Added2026-09-25

Prospect Medical Holdings, 2020-08-14

attack2026-09-25

Prospect Medical Holdings, 2023-09-29hacking

data_types2026-09-25

Prospect Medical Holdings, 2023-09-29["names","health"]

records_basis2026-09-25

Prospect Medical Holdings, 2023-09-29hhs

records2026-09-25

Prospect Medical Holdings, 2023-09-291309096

summary2026-09-25

Prospect Medical Holdings, 2023-09-29The covered entity (CE), Prospect Medical Holdings, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 1,309,096 individuals. The PHI involved included names, dates of birth, drivers’

records_basis2026-09-25

Prospect Medical Holdings, 2023-09-29organization

records2026-09-25

Prospect Medical Holdings, 2023-09-29190492

source2026-09-25

Prospect Medical Holdings, 2023-09-29https://ago.vermont.gov/document/2023-09-29-prospect-medical-holdings-data-breach-notice-consumers

Added2026-09-25

Prospect Medical Holdings, 2023-09-29

Added2026-09-25

Prospect Medical Holdings