Onset Financial Reports Montana Data Breach in 2025

Onset Financial, Inc., a commercial equipment leasing and financing institution, reported a data breach to the Montana Attorney General on December 12, 2025. The incident, which exposed sensitive client information, occurred on May 2, 2025. This breach involved the company's digital network infrastructure, leading to unauthorized access to stored data. The company has indicated it is monitoring the situation, according to public filings.

The types of data reported as exposed in this breach include Full Name, Social Security Number, Date of Birth, Financial Account Number, Routing Number, Tax Return Information, Credit Score Information, and Mailing Address. This comprehensive collection of information is typically gathered by financial institutions like Onset Financial, Inc. for commercial lending, equipment leasing, and asset management purposes.

Exposure of such a wide range of personal and financial data carries significant risks for affected individuals. When Full Name, Social Security Number, and Date of Birth are compromised, the potential for identity theft increases. The inclusion of Financial Account Number, Routing Number, Tax Return Information, and Credit Score Information further heightens the risk of unauthorized financial transactions, fraudulent credit applications, and targeted phishing schemes.

Individuals who receive a notification regarding this data breach should consider taking proactive steps to protect their information. It is advisable to regularly monitor credit reports from the major bureaus for any suspicious activity and carefully review all financial account statements. Changing passwords for online accounts, especially those linked to financial services, is also a recommended precaution. Additionally, exercising vigilance about unsolicited communications that request personal or financial details is crucial.