Breachesby GlyphExact Sciences Laboratories
Disclosed Dec 29, 20252,658 affectedConfirmed
The covered entity (CE), Exact Sciences Laboratories LLC, reported that an employee mailed the protected health information (PHI) of 2,658 individuals to the wrong recipients. The PHI involved included clinical and demographic information. The CE notified HHS, the media and affected individuals. In response to the breach, the CE implemented additional administrative and technical safeguards and retrained the employee to better protect PHI.
What is known
| People affected | 2,658 (as reported to HHS) |
|---|---|
| Disclosed | Dec 29, 2025 |
| Attack | Insider |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
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.