About HydroServe LLC dba Gustavo Preston Company
HydroServe LLC, operating as Gustavo Preston Company, experienced a data breach that affected 138 individuals, including one Maine resident. The breach involved an external system breach through hacking, where unauthorized access was gained to certain computer systems. The company is based in Chelmsford, MA, and notified affected individuals on December 19, 2025, following the discovery of the breach on November 21, 2025.
What Happened
On October 14, 2025, Gustavo Preston identified suspicious activity on certain computer systems. Gustavo Preston immediately took steps to secure its systems and launched an investigation into the nature and scope of the activity. Through its investigation, Gustavo Preston determined that an unknown actor gained access to certain computer systems between October 6, 2025 and October 14, 2025 and was able to view or download certain data.
The data breach occurred on October 6, 2025, affecting 138 individuals, including their personally identifiable information. The breach was discovered on November 21, 2025.
Next Steps
Affected users are advised to remain vigilant by reviewing their account statements and monitoring free credit reports for any suspicious activity. Gustavo Preston is working to implement additional safeguards and training for its employees to prevent future incidents. Users should report any suspected identity theft or fraud to their credit card company or bank. Furthermore, individuals are encouraged to contact relevant authorities, such as the Federal Trade Commission and their state Attorney General, for guidance and to report any incidents.
Identity Theft Protection Services
Gustavo Preston is offering identity theft protection services to those impacted by the breach. Affected individuals are provided with access to credit monitoring services for twelve months through IDX, at no cost. This service includes guidance on placing a fraud alert and a security freeze on credit files. The company ensures that individuals receive information on obtaining free credit reports and encourages them to stay vigilant against identity theft and fraud.