Breachesby GlyphGuardant Health
Disclosed Apr 26, 20249,309 affectedConfirmed
The 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 record and identification numbers, and treatment information. The CE notified HHS and the affected individuals. In response to the breach, the CE sanctioned its workforce member and implemented additional technical safeguards to better protect its PHI. OCR provided the CE with technical assistance regarding the HIPAA Breach Notification Rule.
What is known
| People affected | 9,309 (as reported to HHS) |
|---|---|
| Disclosed | Apr 26, 2024 |
| Happened | Oct 5, 2020 |
| Attack | Insider |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
Other breaches at Guardant Health
History of this record
unknown to insiderby backfillSource
[] to ["names","health"]by backfillSource
empty to hhsby backfillSource
empty to 9309by backfillSource
2024-05-03 to 2024-04-26by backfillSource
empty to The 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 recorby backfillSource
empty to https://ago.vermont.gov/document/2024-05-03-guardant-health-data-breach-notice-consumersby backfillSource
First recordedby backfillSource
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.