Guardant Health

2 breaches10K affected in allHealthcare

Insider breachInsider exposed names and health records. Reported to the California AG.9,309 affectedHealthcareUSApr 26, 2024 Hacking breachHacking exposed names and health records. Reported to the HHS archive.1,112 affectedHealthcareUSSep 14, 2018

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

Added2026-09-25

Guardant Health, 2018-09-14

attack2026-09-25

Guardant Health, 2024-04-26insider

data_types2026-09-25

Guardant Health, 2024-04-26["names","health"]

records_basis2026-09-25

Guardant Health, 2024-04-26hhs

records2026-09-25

Guardant Health, 2024-04-269309

disclosed2026-09-25

Guardant Health, 2024-04-262024-04-26

summary2026-09-25

Guardant Health, 2024-04-26The covered entity (CE), Guardant Health, Inc., reported that a workforce member inadvertently made the protected health information (PHI) of 9,309 individuals viewable over the Internet. The PHI involved included names, ages, medical recor

source2026-09-25

Guardant Health, 2024-04-26https://ago.vermont.gov/document/2024-05-03-guardant-health-data-breach-notice-consumers

Added2026-09-25

Guardant Health, 2024-04-26

Added2026-09-25

Guardant Health