Health Net
Disclosed Apr 14, 201115 years ago1,900,000 affectedConfirmed
Server drives missing from IBM-managed data center hold data of 1.9 million
Health Net reported that server drives went missing from a data center managed by vendor IBM. The breach was reported to HHS under IBM's name as affecting 1.9 million individuals.
What is known
| People affected | 1,900,000 (as reported by the organization) |
|---|---|
| Disclosed | Apr 14, 2011 |
| Attack | Lost or stolen device |
| Data exposed | Health, Other |
| Sector | Insurance · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| HHS Office for Civil Rights breach portal (archive): Breaches Affecting 500 or More Individualsocrportal.hhs.gov · Regulator | Regulator |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | Apr 14, 2011 | 1,900,000 |
Other breaches at Health Net
| Breach | Affected | ||||
|---|---|---|---|---|---|
| Disclosed Dec 22, 2021Dec 22, 20214 years ago | Dec 22, 20214 years ago | Not stated | Healthcare | Confirmed | Unknown |
| Disclosed May 13, 2019May 13, 20197 years agoInsider | May 13, 20197 years ago | Insider | Insurance | Confirmed | 2,404 |
| Disclosed Jul 2, 2013Jul 2, 201313 years ago | Jul 2, 201313 years ago | Not stated | Healthcare | Confirmed | 8,331 |
| Missing portable drive held records of 1.5 million Health Net membersNov 18, 200916 years agoLost or stolen deviceUnverified | Nov 18, 200916 years ago | Lost or stolen device | Insurance | Unverified | 1.5M |
History of this record
- 2026-09-25 · added · seed source
First seen 2026-09-25 (Research), confirmed by Research. Record counts are as reported. Not legal advice.