Every public data breach

44 disclosed this week · 26,355 on record

Matrix Imaging

Disclosed Jul 30, 20102,631 affectedConfirmed

Official notice

The covered entity's (CE) business associate (BA) sent coverage determination letters to incorrect addresses, affecting 2,631 individuals. The protected health information (PHI) included names, addresses, unique CE identification numbers, and prescription drug information. Following the breach, the CE reprinted all erroneous coverage determination letters with an apology notice and provided breach notification to all affected individuals and HHS. The CE implemented additional policies and procedures to ensure mailing list accuracy. Specifically, the CE implemented a multiple-step quality assurance process and established verification with the BA. The breach incident involved a BA and occurred prior to the September 23, 2013, compliance date. OCR verified that the CE had a proper BA agreement in place that restricted the BA's use and disclosure of PHI and required the BA to safeguard all PHI. As a result of OCR's investigation, the CE placed a record into its accounting of disclosure records for each individual impacted.

What is known

People affected2,631 (as reported to HHS)
DisclosedJul 30, 2010
AttackLost or stolen device
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.

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