Mountain West Commercial, LLC Reports 2025 Data Breach in Montana

Mountain West Commercial, LLC, a Montana commercial real estate firm, reported a data breach on December 18, 2025, impacting sensitive personal and financial information. The incident, which occurred on August 14, 2025, potentially affects individuals whose data was stored by the company.

State: Montana
Breach date: August 14, 2025
Reported: December 18, 2025

What may have been exposed

Full Name
Social Security Number
Date of Birth
Mailing Address
Financial Account Number
Routing Number
Tax Identification Information
Phone Number
Email Address

Mountain West Commercial, LLC, operating in Montana's commercial real estate sector, formally reported a data security incident to regulatory authorities on December 18, 2025. The company stated that an unspecified breach of its digital network took place on August 14, 2025. The specific method of compromise remains under investigation.

The compromised data types identified in the breach include Full Name, Social Security Number, Date of Birth, Mailing Address, Financial Account Number, Routing Number, Tax Identification Information, Phone Number, and Email Address. This collection of personal and financial identifiers is frequently targeted in cyber incidents due to its utility in various forms of fraud.

Individuals whose information was affected should remain vigilant for unusual activity. It is recommended to regularly review bank and credit card statements for unauthorized transactions. Additionally, monitoring credit reports for any unfamiliar accounts or inquiries can help detect potential identity theft.

As a proactive measure, consumers might consider placing a fraud alert or security freeze on their credit files with the major credit bureaus. This step can help prevent new lines of credit from being opened in their name without their explicit approval. The company's investigation into the scope and impact of this incident is listed as 'monitoring.'

This documentation of the Mountain West Commercial, LLC data breach is based on public filings and official notifications made to state regulators.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

Freeze your credit
Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.
Guard against tax fraud
File your tax return as early as possible and consider requesting an IRS Identity Protection PIN so no one can file a fraudulent return in your name.
Watch your financial accounts
Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.
Secure your online accounts
Change the password on any account that reused an exposed password and turn on two-factor authentication wherever it's offered.
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: Montana Attorney General filing

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