Sonoma Underground Services Inc Data Breach Confirmed in Indiana

Sonoma Underground Services Inc, an Indiana-based utility and infrastructure contractor, has reported a data security incident to state regulators. The company filed notice of the breach on August 6, 2026, indicating that the incident itself took place on or about December 10, 2025. The filing described the breach type as unspecified, and an investigation into the matter is ongoing.

The compromised data categories include a wide range of sensitive personal information. Specifically, the breach exposed Full Name, Social Security Number, Date of Birth, Wage and Compensation Information, Direct Deposit Account Details, Home Address, Driver's License Number, and Tax Withholding Information.

Exposure of such comprehensive personal data creates significant risks for affected individuals. This information could be used for various forms of identity theft, financial fraud, and unauthorized access to other personal accounts. The presence of financial details like direct deposit information and tax withholding data adds a layer of concern for potential monetary misuse.

Individuals who receive a notification from Sonoma Underground Services Inc are advised to take protective measures immediately. It is recommended to carefully review all financial statements and credit reports for any unauthorized activity. Affected parties may also consider placing a fraud alert or security freeze on their credit files with major credit bureaus.

Staying vigilant against phishing attempts and unsolicited communications is crucial, as threat actors often use exposed data to craft convincing scams. Regularly updating passwords for online accounts and enabling multi-factor authentication where available can also help enhance personal security in the wake of such an incident. These steps are general precautions that can help mitigate the potential impact of exposed personal data.