Guardant Health, Inc. data breach (2018)

Breach window

Jul 13, 2018

When the intrusion reportedly occurred, per the linked filings

63 days

CALIFORNIAHHS OCRFirst filinglinked via same-victim cross-source · 100%

Filed Sep 14, 2018bd_c79c29453cfda198

Guardant Health, Inc. reported to HHS on 2018-09-14 a Hacking/IT Incident affecting 1,112 individuals. Breached information located on Email. A hacker attacked the system via a phishing email, exposing demographic, clinical, and health insurance PHI. The entity notified HHS and individuals, and implemented MFA, enhanced email monitoring, and workforce training.

Affected (this filing): 1,112

HHS notified

🦬Montana State AGMost recentlinked via same-victim cross-source · 100%

Filed Sep 16, 2018bd_4fbeca7bd9e1cb01

Guardant Health reported a data breach to the Montana Attorney General. The breach was reported on 2018-09-16. The breach occurred from 7/13/2018 to 7/18/2018. 2 Montana residents were affected.

Affected (this filing): 2

GUARDANT HEALTH, INC.

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