Cornerstone Healthcare Group Management Services

1 breach485K affected in allHealthcare

Hacking breachHacking exposed names and health records. Reported to the California AG.485K affectedHealthcareUSMar 14, 2024

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

attack2026-09-25

Cornerstone Healthcare Group Management Services, 2024-03-14hacking

data_types2026-09-25

Cornerstone Healthcare Group Management Services, 2024-03-14["names","health"]

records_basis2026-09-25

Cornerstone Healthcare Group Management Services, 2024-03-14hhs

records2026-09-25

Cornerstone Healthcare Group Management Services, 2024-03-14484957

disclosed2026-09-25

Cornerstone Healthcare Group Management Services, 2024-03-142024-03-14

summary2026-09-25

Cornerstone Healthcare Group Management Services, 2024-03-14Cornerstone Healthcare Group Management Services, the business associate (BA), reported that it experienced a hacking incident that compromised the protected health information (PHI) of 484,957 individuals. The PHI involved included names,

source2026-09-25

Cornerstone Healthcare Group Management Services, 2024-03-14https://ago.vermont.gov/document/2024-07-01-cornerstone-healthcare-group-management-services-data-breach-notice-consumers

disclosed2026-09-25

Cornerstone Healthcare Group Management Services, 2024-03-142024-07-01

disclosed2026-09-25

Cornerstone Healthcare Group Management Services, 2024-03-142024-11-01

Added2026-09-25

Cornerstone Healthcare Group Management Services, 2024-03-14

Added2026-09-25

Cornerstone Healthcare Group Management Services