Breachesby GlyphHealth Net of California
Disclosed Mar 25, 2021550,828 affectedConfirmed
The covered entity (CE), Health Net of California, reported that its business associate (BA) experienced a cyber-attack that affected the electronic protected health information (ePHI) of 550,828 individuals. The ePHI involved included names, addresses, dates of birth, health insurance information, diagnoses, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. Following the breach, the CE provided complimentary credit monitoring services to affected individuals and terminated its business relationship with the BA.
What is known
| People affected | 550,828 (as reported to HHS) |
|---|---|
| Disclosed | Mar 25, 2021 |
| Happened | Jan 7, 2021 |
| Attack | Hacking |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
History of this record
unknown to hackingby backfillSource
[] to ["names","health"]by backfillSource
empty to hhsby backfillSource
empty to 550828by backfillSource
empty to The covered entity (CE), Health Net of California, reported that its business associate (BA) experienced a cyber-attack that affected the electronic protected health information (ePHI) of 550,828 individuals. The ePHI involved included nameby backfillSource
First recordedby backfillSource
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.