Kaiser Permanente
Disclosed Apr 25, 20242 years ago13,400,000 affectedUnverified
Tracking code on Kaiser websites and apps shared data of 13.4 million members
Kaiser Permanente said information from about 13.4 million current and former members and patients was transmitted to third-party advertisers through tracking technologies installed on its websites and mobile apps.
What is known
| People affected | 13,400,000 (as reported by the organization) |
|---|---|
| Disclosed | Apr 25, 2024 |
| Attack | Exposed data |
| Data exposed | Names, IP addresses, Health, Other |
| Sector | Healthcare · US |
| Status | Unverified: not yet confirmed by an official notice, a filing or the organization |
Sources
| Source | |
|---|---|
| Kaiser Permanente: Data breach may impact 13.4 million patientsbleepingcomputer.com · News | News |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | Apr 25, 2024 | 13,400,000 |
Other breaches at Kaiser Permanente
| Breach | Affected | ||||
|---|---|---|---|---|---|
| Disclosed Sep 26, 2019Sep 26, 20197 years agoHacking | Sep 26, 20197 years ago | Hacking | Healthcare | Confirmed | 990 |
| Disclosed Apr 16, 2012Apr 16, 201214 years ago | Apr 16, 201214 years ago | Not stated | Other | Confirmed | Unknown |
| Stolen laptop held names and member numbers of 160,000 Kaiser membersJul 27, 200620 years agoLost or stolen deviceUnverified | Jul 27, 200620 years ago | Lost or stolen device | Healthcare | Unverified | 160K |
History of this record
- 2026-09-25 · added · seed source
First seen 2026-09-25 (Research). Record counts are as reported. Not legal advice.