Guardant Health, Inc.

Guardant Health, Inc. notified California AG on May 3, 2024 of a data breach, which occurred between Oct 5, 2020 and Feb 29, 2024.

Organization: Guardant Health, Inc.
Source: California AG · source record
Date reported: May 3, 2024
Date(s) of breach: 10/05/2020, 02/29/2024
Residents affected: Not published by this source
Data exposed: Not stated in the source listing
Notice letter: Sample notice (PDF)
First seen by BreachTally: 2026-10-30 15:40 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.