Skip to content

Montana Health Solutions

Disclosed Mar 25, 20251 year ago8,225 affectedConfirmed

Official notice

What is known

People affected8,225 (as reported by the organization)
DisclosedMar 25, 2025
DiscoveredSep 17, 2024
HappenedSep 6, 2024
AttackPhishing
Data exposedNot stated
SectorHealthcare · US
StatusConfirmed

Sources

Source
Washington Attorney General breach notice: Montana Health Solutionsatg.wa.gov · Official notice
Indiana Attorney General 2025 data breach report: Montana Health Solutionsin.gov · Official notice

Notices filed

WhereFiledPeople
Indiana AGresidents of INMar 25, 20253
Washington AGresidents of WAMar 31, 2025619
History of this record
  • 2026-09-25 · records_basis: empty to organization · backfill source
  • 2026-09-25 · records: empty to 8225 · backfill source
  • 2026-09-25 · disclosed: 2025-03-31 to 2025-03-25 · backfill source
  • 2026-09-25 · added · backfill source

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

Everything about Montana Health Solutions

New breaches by email

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

Double opt-in. Unsubscribe any time.