Posillico, Inc. disclosed a cybersecurity incident involving unauthorized access to its network, potentially exposing names and Social Security numbers of affected individuals.
Posillico’s Data Breach Investigation
On December 8, 2025, Posillico, Inc.—a construction and environmental services company—discovered a network disruption and quickly launched an investigation into the matter. The company enlisted independent cybersecurity experts to assess the scope and impact of the incident. After thorough analysis, Posillico confirmed that certain files were potentially accessed or acquired by unauthorized individuals.
The forensic investigation revealed that the breach may have exposed personal data. On January 6, 2026, Posillico determined that the affected files included the personal information of some individuals, including at least three residents of Maine. These residents were notified via first-class mail on January 13, 2026.
According to the company, there is no current evidence that the data has been misused or leveraged for fraudulent purposes. Nonetheless, the nature of the data involved—names and Social Security numbers—poses a serious risk for identity theft. Recognizing this, Posillico moved swiftly to contain the threat and strengthen its network defenses.
In addition to notifying affected individuals, Posillico reported the incident to the FBI’s Internet Crime Complaint Center and is cooperating with any follow-up investigations. The company also established a dedicated toll-free helpline through IDX, a provider of identity protection services.
To assist victims, Posillico is offering up to 24 months of free credit monitoring, identity theft recovery, dark web monitoring, and up to $1 million in identity fraud loss reimbursement. However, the enrollment deadline is April 12, 2026, so immediate action is encouraged.
Incidents like this reinforce how vital it is for companies to protect the personal information entrusted to them. At Class Action U, we believe consumers deserve better—and when businesses fall short, legal action can provide both accountability and compensation.
When Did This Breach Occur?
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Date Breach Discovered: December 8, 2025
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Date Personal Data Impact Was Confirmed: January 6, 2026
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Maine Residents Notified: January 13, 2026
What Information Was Breached?
Posillico confirmed that the following data may have been involved:
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Full name
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Social Security number
Note: Other impacted data elements may exist but were not specified beyond these for affected Maine residents.
What You Can Do
If you received a notification from Posillico, here are important steps you can take:
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Enroll in IDX Identity Protection Services: Posillico is offering 12 to 24 months of free protection, including credit monitoring, dark web monitoring, and identity theft recovery. Enroll by April 12, 2026.
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Monitor Your Credit and Accounts: Keep a close eye on your financial statements and credit reports for any suspicious activity.
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Place a Fraud Alert or Credit Freeze: Contact one of the three major credit bureaus to add extra protection to your credit file.
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Report Suspicious Activity: If you believe you are a victim of identity theft, report it to the FTC and your local law enforcement.
While these steps offer protection, they don’t replace your right to pursue legal action. If your Social Security number or other private information was exposed, you may be eligible to join a class action lawsuit for financial compensation. Class Action U can connect you with expert legal help.
File a Data Breach Lawsuit Against Posillico
If you received a data breach notification from Posillico, Inc., you could qualify to join a class action lawsuit seeking compensation for the exposure of your personal data. Companies that fail to protect sensitive information like Social Security numbers must be held accountable.
Even if no fraud has occurred yet, the long-term risk from having your personal data stolen is significant. Through a class action lawsuit, you can pursue justice and financial recovery for the stress, time, and potential harm caused by the breach.
Contact us at Class Action U, where we’ll connect you with a lawyer skilled in class action lawsuits. If you’ve been contacted about this breach, received notice, or discovered you were impacted, fill out our quick, easy, and secure form to sign up. There is no cost to reach out to our legal partner and no obligation after speaking with someone from our team.
