Harnish Group Inc. Reports Data Breach Filing in Montana 2025
Harnish Group Inc. submitted a data breach report in Montana on December 31, 2025, confirming an incident that began in November 2025. The company stated it is currently investigating the exposure of personal information. This filing provides public record of the event.
- State
- MT
- Breach date
- November 11, 2025
- Reported
- December 31, 2025
Harnish Group Inc. submitted a data breach filing to Montana regulators on December 31, 2025. This filing confirms a data security incident impacting personal information. The breach originated on or around November 11, 2025.
The exact nature of the incident was not specified in the public record. Harnish Group Inc. is currently investigating the scope and specifics of the event. The filing indicates that personal information was exposed as a result of this breach.
If you have received a direct notification letter from Harnish Group Inc. regarding this incident, it is important to review that communication carefully for any specific instructions. Official breach notifications will often provide details tailored to your situation.
Consider monitoring your financial accounts and credit reports for any suspicious activity. Be cautious of unexpected communications asking for personal details. Regularly update passwords for online accounts and use multi-factor authentication where available to enhance security.
Details about this data breach are based on information publicly filed with state regulatory bodies. DataBreachSearch.com provides access to these verified records.
What to do if you were affected
These general steps can help limit the risk of identity theft and fraud after any data breach.
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.
Source: MT Attorney General filing
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