Did MemberSource Credit Union have a data breach?
Answer
Yes. MemberSource Credit Union reported a data breach to the MT Attorney General on May 5, 2026.
View the official filingWhat the filing says
- Reported to
- MT Attorney General
- Filing date
- May 5, 2026
- Breach date
- June 3, 2025
- People affected
- Not stated in the filing
In plain terms
MemberSource Credit Union has officially reported a data security incident that occurred on June 3, 2025. The credit union filed this public notice on May 5, 2026, confirming an ongoing investigation into the event.
MemberSource Credit Union has confirmed a data security incident, making a public filing about the breach to regulators. This report serves as official notice of a security event involving personal information.
The incident at MemberSource Credit Union was identified to have taken place on June 3, 2025. The credit union submitted its formal report on May 5, 2026, and has indicated that an investigation into the full scope of the breach is currently underway.
Specific details regarding the types of personal information involved in this incident have not been disclosed in the public filing. Similarly, the exact number of individuals whose data may have been compromised remains unspecified as the investigation proceeds.
Individuals who believe they may be affected by this incident, or who receive direct notification, should remain vigilant. It is always a recommended precaution to regularly monitor financial statements and credit reports for any suspicious activity. Additionally, be wary of unsolicited communications, such as emails or calls, that request personal or account details.
This information is based on the official public disclosures filed by MemberSource Credit Union, providing a factual record for individuals seeking to verify reported data breaches.
Other filings by MemberSource Credit Union
Companies often file the same breach in several states. Each filing is listed separately.
Commonly recommended next steps
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.
Look up another company
Other breaches reported in MT
- GrayRobinson P.A.Yes — reportedMT · April 24, 2026
- First Advantage CorporationYes — reportedMT · April 21, 2026
- County of Murray dba Murray County Medical CenterYes — reportedMT · March 6, 2026
- Total WirelessYes — reportedMT · January 9, 2026
- Central Ozarks Medical CenterYes — reportedMT · January 9, 2026
- Clackamas Community CollegeYes — reportedMT · January 8, 2026
- Standard Sales Company, LPYes — reportedMT · January 8, 2026
- Brett Robinson Vacation RentalsYes — reportedMT · January 8, 2026
- Dot Foods, Inc.Yes — reportedMT · January 7, 2026
- TrailWest Bank 2Yes — reportedMT · January 7, 2026
DataBreachSearch.com reports what was filed with state regulators. It is not legal advice, is not a law firm, and is not affiliated with any government agency or with MemberSource Credit Union.