California Department of Corrections and Rehabilitation
Disclosed Feb 8, 20224 years ago236,000 affectedConfirmed
The covered entity (CE), the California Department of Corrections and Rehabilitation, reported that it experienced a ransomware attack that affected the protected health information (PHI) of 236,000 individuals. The PHI involved included names, Social Security numbers, dates of birth, driver’s license numbers, diagnoses, lab results, medications, financial information, and other treatment information. Upon discovering the breach, the CE took steps to secure its network and investigated the breach incident. The CE notified HHS, affected individuals, and the media. It also implemented additional administrative, technical, and security safeguards. As part of the investigation, OCR provided technical assistance to the CE regarding the HIPAA Rules.
What is known
| People affected | 236,000 (as reported to HHS) |
|---|---|
| Disclosed | Feb 8, 2022 |
| Happened | Dec 21, 2021 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: California Department of Corrections and Rehabilitationoag.ca.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): California Department of Corrections and Rehabilitation (Healthcare Provider, CA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | Feb 8, 2022 | |
| California AGresidents of CA | Aug 22, 2022 | |
| HHS archivetotal | Aug 22, 2022 | 236,000 |
Other breaches at California Department of Corrections and Rehabilitation
| Breach | Affected | ||||
|---|---|---|---|---|---|
| Disclosed Jul 14, 2020Jul 14, 20206 years ago | Jul 14, 20206 years ago | Not stated | Healthcare | Confirmed | Unknown |
| Disclosed Dec 26, 2017Dec 26, 20178 years ago | Dec 26, 20178 years ago | Not stated | Healthcare | Confirmed | Unknown |
| Disclosed Nov 21, 2016Nov 21, 20169 years ago | Nov 21, 20169 years ago | Not stated | Healthcare | Confirmed | Unknown |
| Disclosed Jul 13, 2015Jul 13, 201511 years ago | Jul 13, 201511 years ago | Not stated | Healthcare | Confirmed | Unknown |
| Disclosed Aug 20, 2013Aug 20, 201313 years ago | Aug 20, 201313 years ago | Not stated | Healthcare | Confirmed | Unknown |
| Disclosed Nov 1, 2012Nov 1, 201213 years ago | Nov 1, 201213 years ago | Not stated | Healthcare | Confirmed | Unknown |
History of this record
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · records_basis: empty to hhs · backfill source
- 2026-09-25 · records: empty to 236000 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), the California Department of Corrections and Rehabilitation, reported that it experienced a ransomware attack that affected the protected health information (PHI) of 236,000 individuals. The PHI involved included na · backfill source
- 2026-09-25 · disclosed: 2022-08-22 to 2022-02-08 · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.
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