Strauss Borrelli PLLC, a leading data breach law firm, is investigating Horner & Shifrin, Inc. (“H&S”) regarding its recent data breach. The H&S data breach involved sensitive personal information belonging to an undetermined number of individuals.
ABOUT HORNER & SHIFRIN, INC.:
H&S is an engineering and professional services firm based in Missouri. Founded in 1933, H&S offers various services such as surveying, site development, and construction services.2 Headquartered in Saint Louis, Missouri, H&S employs over 50 individuals and operates nine additional locations across Missouri, Illinois, and Arkansas.2,3
WHAT HAPPENED?
Recently, H&S reported to the Attorney General of New Hampshire that it had experienced a data breach in which sensitive personal identifiable information in its care may have been compromised. According to the breach notice, on August 22, 2025, H&S discovered unusual activity on its network.1 As a result, H&S launched an investigation to determine the nature of the incident.
Through its investigation, H&S confirmed that sensitive personal information in its systems may have been accessed by an unauthorized third party between July 17, 2025, and August 22, 2025. As a result, H&S began a review of the data to determine what information had been impacted as well as identify the specific individuals affected. On October 10, 2025, H&S completed this review. While the information impacted varies depending on the individual, the type of information potentially exposed includes:
- Name
- Social Security number
On October 28, 2025, H&S began mailing data breach notification letters to impacted individuals. Based on the breach notice sent to New Hampshire residents, H&S is providing affected individuals with a list of the specific types of sensitive information impacted and 12 months of complimentary credit monitoring services. A link to the breach notification letters that H&S filed with the Attorney General of New Hampshire is below.
If you received a breach notification letter from Horner & Shifrin, Inc.:
We would like to speak with you about your rights and potential legal remedies in response to this data breach. Please fill out the form, below, or contact us at 872.263.1100 or sam@straussborrelli.com.
