Kaiser Permanente Health Plan, Inc of Northern California

Kaiser Permanente Health Plan, Inc of Northern California notified California AG on Nov 7, 2016 of a data breach, which occurred on Oct 12, 2016. Data exposed: Social Security number, Medical / health information, Postal address, Name.

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

Organization: Kaiser Permanente Health Plan, Inc of Northern California
Source: California AG · source record
Date reported: Nov 7, 2016
Date(s) of breach: Wednesday, October 12, 2016
Residents affected: Not published by this source
Data exposed: Social Security number Medical / health information Postal address Name
Notice letter: Sample notice (PDF)
Days to notice: 26 days from the end of the breach window (Oct 12, 2016, no discovery date in the letter) to the California record (Nov 7, 2016). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
First seen by BreachTally: 2026-10-30 16:18 UTC

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

Not today? Take the free Monday digest: the week's filings by state and the largest by people affected. Once a week.

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