Breachesby GlyphSan Mateo Medical Center
Disclosed Nov 13, 20185,000 affectedConfirmed
On November 13, 2018, OCR received a breach notification report from San Mateo Medical Center (SMMC). SMMC reported that the breach affected approximately 5,000 individuals. After an internal investigation, SMMC determined that the report was filed in error, the incident did not amount to a breach and, the incident should not have been reported since no breach occurred. Based on this information, OCR closed the case.
What is known
| People affected | 5,000 (as reported to HHS) |
|---|---|
| Disclosed | Nov 13, 2018 |
| Attack | Insider |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
Other breaches at San Mateo Medical Center
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.