BreachCensus

Personalis, Inc.

healthcareHealthcareUnited States of America

Personalis, Inc. is a healthcare organisation in California. It appears on the HHS OCR breach portal with 1 confirmed incident; the most recent notice was filed on February 4, 2026.

Data as of September 6, 2026.

Confirmed incident

US-CA — Hacking/IT Incident

Disclosed
February 4, 2026
Records affected
650

Timeline

  1. February 4, 2026
    Reported to regulator Regulator

    HHS OCR breach portal listing: Hacking/IT Incident; Email

    source
What a California notice means

Required under Cal. Civ. Code §1798.82. A copy of the notification must be sent to the Attorney General when a single breach requires notifying more than 500 California residents.

Note: no affected-count is published on this register.

California breach-notification register ↗