Data Breaches Reported to the Montana Attorney General
Companies that filed a breach notification with Montana. A filing means the company notified this state’s regulator; it does not mean the company is based here.
Nelson University Data Breach Notice (Montana Attorney General)
Nelson University notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on June 15, 2026. The filing puts the incident itself on March 21…
AssetMark, Inc. Data Breach Notice (Montana Attorney General)
AssetMark, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on June 11, 2026. The filing puts the incident itself on May 15, 2026.
Plaza Home Mortgage, Inc. Data Breach Notice (Montana Attorney General)
Plaza Home Mortgage, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on June 08, 2026. The filing puts the incident itself on…
Minnesota Epilepsy Group, P.A. Data Breach Notice (Montana Attorney General)
Minnesota Epilepsy Group, P.A. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on June 05, 2026. The filing puts the incident itself on…
Bozeman School District #7 Data Breach Notice (Montana Attorney General)
Bozeman School District #7 notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on June 03, 2026. The filing puts the incident itself on…
Strategic Education Inc. Data Breach Notice (Montana Attorney General)
Strategic Education Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on June 01, 2026. The filing puts the incident itself on…
Educational Employees Credit Union Data Breach Notice (Montana Attorney General)
Educational Employees Credit Union notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 29, 2026. The filing puts the incident itself…
IMA Diligence Services, LLC Data Breach Notice (Montana Attorney General)
IMA Diligence Services, LLC notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 29, 2026. The filing puts the incident itself on…
Networking Technology, Inc. d/b/a RXNT Data Breach Notice (Montana Attorney General)
Networking Technology, Inc. d/b/a RXNT notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 29, 2026. The filing puts the incident…
Blue Teal Holdings, LLC Data Breach Notice (Montana Attorney General)
Blue Teal Holdings, LLC notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 28, 2026. The filing puts the incident itself on October…
Industrial Acceptance Corporation Data Breach Notice (Montana Attorney General)
Industrial Acceptance Corporation notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 28, 2026. The filing puts the incident itself…
Texas Capital Data Breach Notice (Montana Attorney General)
Texas Capital notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 28, 2026. The filing puts the incident itself on April 26, 2026.
Carnival Corporation Data Breach Notice (Montana Attorney General)
Carnival Corporation notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 27, 2026. The filing puts the incident itself on April 10…
Barnhart Crane & Rigging Company, Inc. Data Breach Notice (Montana Attorney General)
Barnhart Crane & Rigging Company, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 21, 2026. The filing puts the incident…
Cardinal Services Data Breach Notice (Montana Attorney General)
Cardinal Services notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 20, 2026. The filing puts the incident itself on June 25, 2025.
Sterling Seacrest Pritchard, Inc. Data Breach Notice (Montana Attorney General)
Sterling Seacrest Pritchard, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 19, 2026. The filing puts the incident itself…
Frost Bank Data Breach Notice (Montana Attorney General)
Frost Bank notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 19, 2026. The filing puts the incident itself on December 01, 2025.
Boston Capital Holdings LP Data Breach Notice (Montana Attorney General)
Boston Capital Holdings LP notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 18, 2026. The filing puts the incident itself on…
REIC Rentals, LLC Data Breach Notice (Montana Attorney General)
REIC Rentals, LLC notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 18, 2026. The filing puts the incident itself on February 03…
The Beacon Mutual Insurance Data Breach Notice (Montana Attorney General)
The Beacon Mutual Insurance notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 18, 2026. The filing puts the incident itself on…
Fluke Corporation Data Breach Notice (Montana Attorney General)
Fluke Corporation notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 15, 2026. The filing puts the incident itself on August 10…
Lumexa Imaging Data Breach Notice (Montana Attorney General)
Lumexa Imaging notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 15, 2026. The filing puts the incident itself on March 31, 2026.
Cresset Capital Management Data Breach Notice (Montana Attorney General)
Cresset Capital Management notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 14, 2026. The filing puts the incident itself on April…
MemberSource Credit Union Data Breach Notice (Montana Attorney General)
MemberSource Credit Union notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 05, 2026. The filing puts the incident itself on June…
Western Orthopaedics, P.C. Data Breach Notice (Montana Attorney General)
Western Orthopaedics, P.C. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on May 01, 2026. The filing puts the incident itself on…
Mt. Spokane Pediatrics Data Breach Notice (Montana Attorney General)
Mt. Spokane Pediatrics notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 30, 2026. The filing puts the incident itself on January…
GrayRobinson P.A. Data Breach Notice (Montana Attorney General)
GrayRobinson P.A. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 24, 2026. The filing puts the incident itself on March 05…
Rodenburg Law Firm Data Breach Notice (Montana Attorney General)
Rodenburg Law Firm notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 24, 2026. The filing puts the incident itself on August 26…
Heritage Bank Data Breach Notice (Montana Attorney General)
Heritage Bank notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 23, 2026. The filing puts the incident itself on March 01, 2026.
St. Peter O’Brien Law Offices P.C. Data Breach Notice (Montana Attorney General)
St. Peter O’Brien Law Offices P.C. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 23, 2026. The filing puts the incident…
First Advantage Corporation Data Breach Notice (Montana Attorney General)
First Advantage Corporation notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 21, 2026. The filing puts the incident itself on…
Restaurant Management Company of Wichita, Inc. Data Breach Notice (Montana Attorney General)
Restaurant Management Company of Wichita, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 20, 2026. The filing puts the…
Impac Mortgage Holdings, Inc. Data Breach Notice (Montana Attorney General)
Impac Mortgage Holdings, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 17, 2026. The filing puts the incident itself on…
Alaska Air Group Credit Union Data Breach Notice (Montana Attorney General)
Alaska Air Group Credit Union notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 16, 2026. The filing puts the incident itself on…
Cookeville Regional Medical Center Data Breach Notice (Montana Attorney General)
Cookeville Regional Medical Center notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 14, 2026. The filing puts the incident…
Pediatric Products, LLC Data Breach Notice (Montana Attorney General)
Pediatric Products, LLC notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 14, 2026. The filing puts the incident itself on…
Minnesota Epilepsy Group Data Breach Notice (Montana Attorney General)
Minnesota Epilepsy Group notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 14, 2026. The filing puts the incident itself on…
David Evans Enterprises, Inc. Data Breach Notice (Montana Attorney General)
David Evans Enterprises, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 10, 2026. The filing puts the incident itself on…
Providence Data Breach Notice (Montana Attorney General)
Providence notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 09, 2026. The filing puts the incident itself on August 30, 2024.
Glendale Obstetrics & Gynecology Data Breach Notice (Montana Attorney General)
Glendale Obstetrics & Gynecology notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 09, 2026. The filing puts the incident itself…
TruView BSI, LLC Data Breach Notice (Montana Attorney General)
TruView BSI, LLC notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 08, 2026. The filing puts the incident itself on July 18…
OneDigital Investment Advisors LLC Data Breach Notice (Montana Attorney General)
OneDigital Investment Advisors LLC notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 08, 2026. The filing puts the incident…
REIC Rentals, LLC Data Breach Notice (Montana Attorney General)
REIC Rentals, LLC notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 07, 2026. The filing puts the incident itself on February 03…
TIMEC Oil & Gas, Inc. Data Breach Notice (Montana Attorney General)
TIMEC Oil & Gas, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on April 02, 2026. The filing puts the incident itself on April…
illumifin Corporation Data Breach Notice (Montana Attorney General)
illumifin Corporation notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 31, 2026. The filing puts the incident itself on November…
Mercer Advisors Inc. Data Breach Notice (Montana Attorney General)
Mercer Advisors Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 31, 2026. The filing puts the incident itself on January…
Navia Benefit Solutions, Inc. Data Breach Notice (Montana Attorney General)
Navia Benefit Solutions, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 18, 2026. The filing puts the incident itself on…
Kaplan North America, LLC Data Breach Notice (Montana Attorney General)
Kaplan North America, LLC notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 17, 2026. The filing puts the incident itself on…
OpenLoop Health Inc. Data Breach Notice (Montana Attorney General)
OpenLoop Health Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 17, 2026. The filing puts the incident itself on January…
Grayback Forestry, Inc. Data Breach Notice (Montana Attorney General)
Grayback Forestry, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 13, 2026. The filing puts the incident itself on…
Fairmont Hot Springs Resort Data Breach Notice (Montana Attorney General)
Fairmont Hot Springs Resort notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 10, 2026. The filing puts the incident itself on…
SitusAMC Holdings Corporation Data Breach Notice (Montana Attorney General)
SitusAMC Holdings Corporation notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 10, 2026. The filing puts the incident itself on…
Survival Flight, Inc. Data Breach Notice (Montana Attorney General)
Survival Flight, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 06, 2026. The filing puts the incident itself on July 17…
County of Murray dba Murray County Medical Center Data Breach Notice (Montana Attorney General)
County of Murray dba Murray County Medical Center notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 06, 2026. The filing puts the…
Inisightin Health, Inc. Data Breach Notice (Montana Attorney General)
Inisightin Health, Inc. notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on March 04, 2026. The filing puts the incident itself on…
TriZetto Provider Solutions Data Breach Notice (Montana Attorney General)
TriZetto Provider Solutions notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on February 06, 2026. The filing puts the incident itself on…
Murex Petroleum Corporation Data Breach Notice (Montana Attorney General)
Murex Petroleum Corporation notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on January 27, 2026. The filing puts the incident itself on…
Total Wireless Data Breach Notice (Montana Attorney General)
Total Wireless notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on January 09, 2026. The filing puts the incident itself on December 10…
Central Ozarks Medical Center Data Breach Notice (Montana Attorney General)
Central Ozarks Medical Center notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on January 09, 2026. The filing puts the incident itself…
Standard Sales Company, LP Data Breach Notice (Montana Attorney General)
Standard Sales Company, LP notified Montana residents of a data breach in a filing reported to the Montana Department of Justice on January 08, 2026. The filing puts the incident itself on…
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.