Skip to content

Memorial Hermann Health System

Disclosed Mar 31, 20215 years ago1,893 affectedConfirmed

Official notice

The covered entity (CE), Memorial Hermann Health System, reported that an employee of its business associate (BA) uploaded the protected health information (PHI) of 1,893 individuals to the Internet; the data was then viewable by the public. The PHI involved included names, addresses, dates of birth, Social Security numbers, diagnoses, claims and health insurance information, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the BA provided complimentary credit monitoring services and implemented additional technical safeguards.

What is known

People affected1,893 (as reported to HHS)
DisclosedMar 31, 2021
AttackInsider
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

WhereFiledPeople
HHS archivetotalMar 31, 20211,893

Other breaches at Memorial Hermann Health System

BreachAffected
Disclosed May 13, 2019May 13, 20197 years agoInsider604
Disclosed Aug 29, 2014Aug 29, 201412 years agoInsider11K
History of this record
  • 2026-09-25 · added · backfill source

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

Everything about Memorial Hermann Health System

New breaches by email

Wednesdays, only in weeks with newly disclosed breaches, the largest first.

Double opt-in. Unsubscribe any time.