Strauss Borrelli PLLC, a leading data breach law firm, is investigating Mechanical Systems & Services, Inc. (“MSS”) regarding its recent data breach. The MSS data breach involved sensitive personal information belonging to an undetermined number of individuals.
ABOUT MECHANICAL SYSTEM & SERVICES, INC.:
MSS is a construction and renovation based in North Carolina. Founded in 1996, MSS provides clients with services for construction and major renovation projects, as well as preventive maintenance, equipment repairs, and system upgrades.2,3 Services offered by MSS include HVAC service, mechanical design and construction, security systems, building automation and controls, energy management and analytics, and more.3 Headquartered in Charlotte, North Carolina, MSS employs over 750 individuals and operates 9 locations throughout North and South Carolina.3,4
WHAT HAPPENED?
Recently, MSS reported to the Attorney General of the Commonwealth of Massachusetts that the sensitive personal identifiable information in its care may have been compromised. In the sample breach notice provided to the Attorney General of the Commonwealth of Massachusetts, MSS does not elaborate on the nature of the security incident that impacted its systems. While the information impacted varies depending on the individual, the type of information potentially exposed includes:
- Name
- Social Security number
On November 19, 2025, MSS began mailing data breach notification letters to impacted individuals. Based on the breach notice sent to Massachusetts residents, MSS is providing affected individuals with a list of the specific types of sensitive information impacted and 24 months complimentary credit monitoring services. A link to the breach notification letters that MSS filed with the Attorney General of the Commonwealth of Massachusetts is below.
If you received a breach notification letter from Mechanical Systems & Services, 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.










