Breachesby GlyphMissouri Department of Mental Health
Disclosed Nov 8, 2024537 affectedConfirmed
The covered entity (CE), Missouri Department of Mental Health, reported that an employee erroneously sent an unencrypted email message containing the protected health information (PHI) of 537 individuals to the wrong individuals. The PHI involved included names, Social Security numbers, addresses, and dates of birth. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE implemented additional administrative, technical, and security safeguards. Staff were retrained.
What is known
| People affected | 537 (as reported to HHS) |
|---|---|
| Disclosed | Nov 8, 2024 |
| Attack | Insider |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
Other breaches at Missouri Department of Mental Health
History of this record
First recordedby backfillSource
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.