MemberSource Credit Union Discloses Data Incident Filing

MemberSource Credit Union, based in Montana, has formally acknowledged a data incident through a public regulatory filing. This disclosure provides details about an event that may involve personal information.

The credit union reported that this incident took place on June 3, 2025. A public filing detailing this event was submitted on May 5, 2026, indicating that an investigation into the matter is currently in progress.

While the specific type of breach and the categories of personal information potentially involved were not detailed in the filing, the disclosure confirms that individuals' data may have been affected. The full nature and scope of the exposure remain under investigation.

Individuals who may be impacted by this incident should remain vigilant. Regularly monitor financial accounts and credit reports for any suspicious transactions or unauthorized activity. Consider placing a fraud alert on your credit files as a precautionary measure.

It is also advisable to reset passwords for any online accounts that share credentials, especially those related to financial services. Use strong, unique passwords for each account and enable multi-factor authentication whenever available to add an extra layer of security.

All information regarding this data incident for MemberSource Credit Union is derived from public regulatory filings, consistent with the requirements for transparency surrounding such events.