Western Montana Mental Health Center

Western Montana Mental Health Center reported an external system breach occurring on September 11, 2024, discovered on September 15, 2024. The incident compromised personal and protected health information (including SSNs, driver's licenses, and medical data) for approximately 86,758 individuals, including 6 Maine residents. Notices were sent on July 17, 2025, offering 12 months of identity protection services.

Western Montana Mental Health Center reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-07-18. 12 Massachusetts residents were affected.

Western Montana Mental Health reported a data breach affecting 12 New Hampshire residents. Discovered on September 15, 2024, unauthorized access to files containing PII and PHI occurred. The organization engaged forensic experts, notified the FBI, and provided 12 months of identity protection services to affected individuals.

Western Montana Mental Health Center notified Montana residents of a data security incident discovered on September 15, 2024. Unauthorized access to files containing PII and PHI was confirmed in May 2025. The FBI was notified, and affected individuals were offered identity protection services. No evidence of misuse was found.

Western Montana Mental Health Center (WMMHC) notified the Nebraska Attorney General of a data breach affecting approximately 10 Nebraska residents. On September 15, 2024, WMMHC discovered unauthorized access to files containing personal and protected health information, including SSNs, driver's licenses, and medical data. Notifications were mailed on July 17, 2025, offering 12 months of identity protection. WMMHC engaged forensic experts and law enforcement (FBI).

Western Montana Mental Health Center notified consumers of a data security incident discovered on September 15, 2024. Unauthorized access to files containing personal and protected health information (PHI) and names was confirmed. The organization engaged cybersecurity experts, notified the FBI, and offered complimentary identity protection services. No evidence of misuse was found. The specific number of affected individuals was not disclosed in the notice.

Western Montana Mental Health Center notified Montana residents of a data security incident discovered on September 15, 2024. Unauthorized access to files containing PII and PHI occurred. The organization engaged cybersecurity experts, notified the FBI, and offered identity protection services. No evidence of misuse was found.

Western Montana Mental Health Center reported a data breach to the Indiana Attorney General. The breach occurred on 2024-09-11 and was reported on 2025-07-17. 23 Indiana residents were affected. 86,758 individuals affected in total.

Western Montana Mental Health Center reported to HHS on 2024-11-14 a Hacking/IT Incident affecting 86,758 individuals. Breached information located on Network Server. The incident involved a ransomware attack affecting protected health information (PHI).