Regulator-posted notice

Breach notice filed by King County Public Hospital District No. 2 d/b/a EvergreenHealth (July 2021)

Organization named: King County Public Hospital District No. 2 d/b/a EvergreenHealth Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Hacking/IT Incident

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 July 13, 2021.

Organization as reported: King County Public Hospital District No. 2 d/b/a EvergreenHealth, WA
Entity type as reported: Healthcare Provider
Category as reported: Hacking/IT Incident
Location of information as reported: Network Server
Submission date: July 13, 2021
Observed by BreachRecords: 2026-10-18 16:15 UTC (revision 12016, row:3155)
Archived copy: Held in the private archive (provenance)

The covered entity (CE), King County Public Hospital District No. 2, dba EvergreenHealth, reported that its business associate (BA) experienced a cyber-attack that affected the electronic protected health information (ePHI) of 22,579 individuals. The ePHI involved included names, dates of birth, health insurance and financial information, and treatment information. The CE notified HHS, affected individuals, and the media.
The source's own words, from the revision above.

Figures, per source

22,579 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date July 13, 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.

2021-07-13Submission date (HHS Office for Civil Rights breach portal)
2026-10-18Observed by BreachRecords (revision 12016)
2026-10-19Approved by a reviewer

Organizations linked by a reviewer

King County Public Hospital District No. 2 d/b/a EvergreenHealth 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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