Latest / California / February 2021

Kaiser Foundation Hospitals, Northern California

Kaiser Foundation Hospitals, Northern California notified California AG on Feb 23, 2021 of a data breach, which occurred on Dec 28, 2020. Data exposed: Social Security number, Financial / bank account, Date of birth, Email address, Phone number, Postal address, Name.

Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
Kaiser Foundation Hospitals, Northern California
Source
California AG · source record
Date reported
Feb 23, 2021
Date(s) of breach
Thursday, January 1, 2015Monday, December 28, 2020
Residents affected
Not published by this source
Data exposed
Social Security number Financial / bank account Date of birth Email address Phone number Postal address Name
Notice letter
Sample notice (PDF)
Discovered
Dec 28, 2020, as stated in the letter
"On December 28, 2020, Kaiser Permanente determined that one of its employees accessed portions of members’ medical records for reasons unrelated to their health care service needs."
Days to notice
57 days from discovery (Dec 28, 2020) to the California record (Feb 23, 2021). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82). Over the statutory period
First seen by BreachTally
2026-10-30 16:08 UTC

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

First seen by BreachTally at 16:08 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
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Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.