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44 disclosed this week · 26,355 on record

St. Mark's Surgical Center

Disclosed Aug 9, 201733,877 affectedConfirmed

Official notice

The covered entity (CE), St. Mark’s Surgical Center, reported a ransomware attack on its computer server. The protected health information (PHI) involved in the incident included patients’ names, addresses, dates of birth, driver licenses, social security information, diagnoses and conditions, lab results, and medications and affected approximately 33,877 individuals. The CE provided breach notification to HHS, affected individuals, and the media. Subsequent to the breach, the CE upgraded its firewall, hardened access controls, upgraded its backup and disaster recovery system, restricted remote access, and strengthened passwords. Additionally, the CE contacted law enforcement and hired external forensic investigators. During the investigation, OCR provided technical assistance on the Breach Notification Rule, and the CE revised its HIPAA policies and procedures and retrained its workforce.

What is known

People affected33,877 (as reported to HHS)
DisclosedAug 9, 2017
AttackHacking
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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