Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Sutter Health

Disclosed Nov 17, 2011943,434 affectedConfirmed

Official notice

Stolen Sutter Medical Foundation desktop held data on over 4 million patients

A password protected but largely unencrypted computer was stolen from Sutter Medical Foundation's administrative offices on October 15, 2011. HHS lists 943,434 individuals, other reports put the total near 4.24 million, and a class action sought more than $1 billion.

What is known

People affected943,434 (as reported by the organization)
DisclosedNov 17, 2011
DiscoveredOct 15, 2011
AttackLost or stolen device
Data exposedNamesAddressesDates of birthInsuranceHealth
SectorHealthcare · US
StatusConfirmed
Lawsuit or fineClass action seeking $1B (filed 2011)

Sources

Newsen.wikipedia.org
List of data breaches - Wikipedia
Regulatorocrportal.hhs.gov
HHS Office for Civil Rights breach portal (archive): Breaches Affecting 500 or More Individuals
Newsweb.archive.org
Sutter Health sued for $1 billion following data breach

Notices filed

TotalNov 17, 2011
Research943,434 people

Other breaches at Sutter Health

Hacking breachHacking exposed names and health records. Reported to the California AG.845K affectedHealthcareUSNov 3, 2023Breach, details not statedBreach notice filed with the California AG, details not stated.HealthcareUSFeb 7, 2018
History of this record
Added2026-09-25
First recordedby seedSource

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

Everything about Sutter Health