Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Montana Health Solutions

Disclosed Mar 25, 20258,225 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

Official noticeatg.wa.gov
Washington Attorney General breach notice: Montana Health Solutions
Official noticein.gov
Indiana Attorney General 2025 data breach report: Montana Health Solutions

Notices filed

Residents of INMar 25, 2025
Indiana AG3 people
Residents of WAMar 31, 2025
Washington AG619 people
History of this record
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 8225by backfillSource
disclosed2026-09-25
2025-03-31 to 2025-03-25by backfillSource
Added2026-09-25
First recordedby backfillSource

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

Everything about Montana Health Solutions