Tri-State Paving Data Breach Investigation

Recently, Tri-State Paving reported to the Attorney General of New Hampshire that it had experienced a data breach in which sensitive personal identifiable information and protected health information in its care may have been compromised. According to the breach notice, on February 25, 2025, Tri-State Paving learned of suspicious activity within certain email accounts.¹ As a result, Tri-State Paving launched an investigation to determine the nature of the incident.

Through its investigation, Tri-State Paving confirmed that sensitive personal information and protected health information in the affected email accounts may have been accessed by an unauthorized third party between December 30, 2024, and February 25, 2025. As a result, Tri-State Paving began a review of the data to determine what information had been impacted as well as identify the specific individuals affected. On September 4, 2025, Tri-State Paving completed this review. While the information impacted varies depending on the individual, the type of information potentially exposed includes:⁴

• Name
• Social Security number
• Date of birth
• Driver’s license or state ID number
• Account or routing number
• Payment card number and expiration date
• Medical information
• Taxpayer identification number

On April 8, 2025, Tri-State Paving began mailing data breach notification letters to impacted individuals. Additionally, Tri-State Paving posted notice of the data breach on its website. Based on the breach notice sent to New Hampshire residents, Tri-State Paving is providing affected individuals with a list of the specific types of sensitive information impacted and complimentary credit monitoring services. A link to the breach notification letters that Tri-State Paving filed with the Attorney General of New Hampshire is below.