Regulator-posted notice

Breach notice filed by Highmark Inc (February 2023)

Organization named: Highmark 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 OCR breach portal (HIPAA breaches affecting 500 or more individuals) with a submission date of Feb. 10, 2023.

Organization as reported: Highmark Inc, PA
Entity type as reported: Business Associate
Category as reported: Hacking/IT Incident
Location of information as reported: Email
Submission date: Feb. 10, 2023
Observed by BreachRecords: 2026-10-18 16:15 UTC (revision 10909, row:2048)
Archived copy: Held in the private archive (provenance)

Highmark, the business associate (BA), reported that an employee was the subject of an email phishing scheme that compromised the protected health information (PHI) of 36,600 individuals. The PHI involved included names, addresses, birthdates, Social Security and drivers’ license numbers, diagnoses, medications, claims and financial information, and other treatment information. The BA notified HHS, affected individuals, and the media. In response to the incident, the BA provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards. Staff were retrained on email security.
The source's own words, from the revision above.

Figures, per source

36,600 individuals affected (total reported), as reported by the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), source date Feb. 10, 2023, 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.

2023-02-10Submission date at the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals)
2026-10-18Observed by BreachRecords (revision 10909)
2026-10-19Approved by a reviewer

Organizations linked by a reviewer

Highmark Named as a service provider 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, from the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), retrieved 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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