California Correctional Health Care Services

Disclosed May 15, 2016400,000 affectedConfirmed

Stolen unencrypted laptop held custody and medical data of 400,000 inmates

A password protected but unencrypted laptop was stolen from a staff member's car, exposing medical, mental health and custodial information on up to 400,000 patients of California's prison health system.

What is known

People affected	400,000 (as reported by the organization)
Disclosed	May 15, 2016
Happened	Feb 25, 2016
Attack	Lost or stolen device
Data exposed	HealthOtherNames
Sector	Government · US
Status	Confirmed

Sources

Official noticeoag.ca.gov

California Attorney General breach notice: California Correctional Health Care Services

Regulatorocrportal.hhs.gov

HHS Office for Civil Rights breach portal (archive): Breaches Affecting 500 or More Individuals

Notices filed

Residents of CAMay 15, 2016

California AGCount not stated

TotalMay 15, 2016

Research400,000 people

TotalMay 15, 2016

HHS archive400,000 people

TotalFeb 9, 2017

HHS archive738 people

Other breaches at California Correctional Health Care Services

Insider breachInsider exposed names and health records. Reported to the California AG.4,105 affectedHealthcareUSMar 13, 2024 Breach, details not statedBreach notice filed with the California AG, details not stated.HealthcareUSNov 18, 2022 Breach, details not statedBreach notice filed with the California AG, details not stated.HealthcareUSDec 2, 2021 Breach, details not statedExposed names and health records. Reported to the California AG.1,033 affectedHealthcareUSJul 30, 2013 Breach, details not statedBreach notice filed with the California AG, details not stated.HealthcareUSAug 7, 2012

History of this record

data_types2026-09-25

["health","other"] to ["health","other","names"]by backfillSource

sector2026-09-25

health to governmentby seedSource

attack2026-09-25

unknown to lost-deviceby seedSource

data_types2026-09-25

[] to ["health","other"]by seedSource

records_basis2026-09-25

empty to organizationby seedSource

records2026-09-25

empty to 400000by seedSource

summary2026-09-25

empty to A password protected but unencrypted laptop was stolen from a staff member's car, exposing medical, mental health and custodial information on up to 400,000 patients of California's prison health system.by seedSource

title2026-09-25

empty to Stolen unencrypted laptop held custody and medical data of 400,000 inmatesby seedSource

Added2026-09-25

First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about California Correctional Health Care Services