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Regulator-posted notice

Breach notice filed by Memorial Hermann Health System (March 2021)

Organization named: Memorial Hermann Health System Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Unauthorized Access/Disclosure

What the sources say

HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice

Posted on the HHS Office for Civil Rights breach portal with a submission date of March 31, 2021.

Organization as reported
Memorial Hermann Health System, TX
Entity type as reported
Healthcare Provider
Category as reported
Unauthorized Access/Disclosure
Location of information as reported
Network Server
Submission date
March 31, 2021
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 12253, row:3392)
Archived copy
Held in the private archive (provenance)

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.

The source's own words, from the revision above.

Figures, per source

  • 1,893 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date March 31, 2021, revision observed 2026-10-18.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

  • Submission date (HHS Office for Civil Rights breach portal)
  • Observed by BreachRecords (revision 12253)
  • Approved by a reviewer

Organizations linked by a reviewer

  • Memorial Hermann Health System Named as the covered entity Provisional: identity as filed, not yet matched to the directory Linked 2026-10-19, method provisional.

Archived evidence

  • 3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
    text/csv, 5,530,996 bytes, retrieved from HHS Office for Civil Rights breach portal, 2026-10-18 16:15 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

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