CSG Consultants Data Breach — Case File

From the AG filing description

CSG Consultants operates as a specialized engineering, architectural, and municipal services firm, partnering with local governments, public agencies, and private developers to oversee large-scale infrastructure, construction, and land-use projects. Because of the nature of their operations, CSG Consultants routinely collects and retains a massive volume of highly confidential data. This includes detailed personnel records, background check files, payroll and tax documentation for engineers, inspectors, and administrative staff, as well as proprietary municipal project schematics, internal communications, and vendor financial accounts. The firm serves as a central repository for sensitive personally identifiable information (PII) belonging to current and former employees, subcontractors, and municipal partners. In 2025, CSG Consultants reported a significant data security incident to the New Hampshire Attorney General, alerting regulators and affected individuals that unauthorized parties may have accessed its internal network or database infrastructure. Incidents impacting professional consulting and municipal contractor firms typically involve sophisticated cyberattacks, such as ransomware deployments, unauthorized entry into legacy databases, or compromised employee credentials through targeted phishing campaigns. Once malicious actors breach perimeter defenses, they frequently deploy malware capable of exfiltrating vast archives of confidential documents before detection occurs. The exposure resulting from the CSG Consultants breach encompasses multiple categories of sensitive data, each carrying profound risks for the victims. Compromised Social Security numbers and dates of birth expose individuals to immediate dangers of identity theft and unauthorized credit applications. Furthermore, the leakage of banking details, direct deposit routing numbers, and wage information creates severe vulnerabilities for financial account takeover, fraudulent tax return filings, and unauthorized wire transfers. When professional and personal identifiers are leaked together, victims face years of heightened exposure to social engineering schemes and synthetic identity fraud. As a commercial entity handling sensitive employee and municipal data, CSG Consultants was bound by state data privacy statutes and common-law negligence principles to maintain robust, industry-standard cybersecurity measures. Under the New Hampshire Consumer Protection Act and applicable data security regulations, companies that collect PII have an affirmative legal obligation to implement adequate encryption, multi-factor authentication, network segmentation, and prompt vulnerability patching. The occurrence of a successful breach strongly indicates a potential failure of these fundamental duties, suggesting that inadequate security controls left digital assets defenseless against external threats. Receiving a formal data breach notification letter from CSG Consultants serves as legal acknowledgment that your confidential information was compromised due to corporate security failures. Legally, the receipt of this notice establishes the concrete injury and standing necessary to participate in a class action lawsuit aimed at holding the company accountable. Importantly, affected individuals are not required to demonstrate actual financial loss or out-of-pocket theft to seek legal recourse; the increased risk of future identity theft and the loss of privacy are sufficient grounds for action. Our firm evaluates these claims on a strict contingency-fee basis, meaning you pay nothing out of pocket and owe no legal fees unless we successfully recover compensation on your behalf.