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Regulator-posted notice

Breach notice filed by Acadia Montana Treatment Center (May 2019)

Organization named: Acadia Montana Treatment Center 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 May 17, 2019.

Organization as reported
Acadia Montana Treatment Center, MT
Entity type as reported
Healthcare Provider
Category as reported
Hacking/IT Incident
Location of information as reported
Email
Submission date
May 17, 2019
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 13400, row:4539)
Archived copy
Held in the private archive (provenance)

Acadia Montana Treatment Center, the covered entity (CE), reported that an employee’s computer was infected with malware that affected the electronic protected health information (ePHI) of 14,794 individuals. The ePHI involved included names, addresses, birthdates, drivers’ license numbers, diagnoses/conditions, lab results, medications prescribed, and other treatment information. The CE notified HHS, affected individuals, and the media. In its mitigation efforts, the CE retrained its workforce, implemented additional technical safeguards, and sanctioned the workforce member responsible for the breach.

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

Figures, per source

  • 14,794 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date May 17, 2019, 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 13400)
  • Approved by a reviewer

Organizations linked by a reviewer

  • Acadia Montana Treatment Center 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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