Breachesby GlyphHorizon Behavioral Health
Disclosed Apr 21, 202549,303 affectedConfirmed
The covered entity (CE), Horizon Behavioral Health, reported that it experienced a ransomware incident that affected the protected heath information (PHI) of 49,303 individuals. The PHI involved included names, dates of birth, social security numbers, drivers’ license numbers, diagnoses, medications, and claims information. The CE notified HHS, affected individuals, the media, and posted substitute notice to its website. In response to the breach, the CE offered free credit monitoring to affected individuals and implemented additional administrative, technical, and security safeguards.
What is known
| People affected | 49,303 (as reported to HHS) |
|---|---|
| Disclosed | Apr 21, 2025 |
| 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 49303by backfillSource
empty to The covered entity (CE), Horizon Behavioral Health, reported that it experienced a ransomware incident that affected the protected heath information (PHI) of 49,303 individuals. The PHI involved included names, dates of birth, social securiby backfillSource
First recordedby backfillSource
First seen 2026-09-25 (Vermont AG), confirmed by Vermont AG. Record counts are as reported. Not legal advice.