Posillico Data Breach Lawsuit Investigation
Posillico is notifying individuals of a cybersecurity incident first detected in December 2025. If you received a data breach letter from Posillico, our legal and data-privacy team wants to hear from you. Contact us for a free, confidential case evaluation.
Key Details at a Glance
- Incident type: Network disruption leading to unauthorized access to certain files
- Discovery date: December 8, 2025
- Personal data involved: Name and certain other personal data elements (exact elements vary by individual)
- Notice mailed: January 12, 2026
- Identity-protection offered: Complimentary services through IDX, including credit and dark-web monitoring, a $1 million fraud loss reimbursement policy, and fully managed identity recovery (enrollment deadline April 12, 2026)
- Breach reported to state regulators: January 13, 2026 (Maine Attorney General)
What Happened
Posillico, Inc. (“Posillico”) detected a network disruption on December 8, 2025 and immediately launched an investigation with the assistance of independent cybersecurity experts. The investigation determined that certain files were potentially accessed or acquired without authorization. On or about January 6, 2026, Posillico confirmed that some of those files contained personal information belonging to current and former stakeholders, prompting formal notification. According to Posillico, there is no evidence to date of actual or attempted misuse of the impacted data.
What Information Was Exposed?
The company’s notice indicates the files may have contained your name along with other personal data elements specific to each individual. The breach letter you received lists exactly which items of your information were involved.
Steps Posillico Took After the Breach
Posillico states it has:
- Engaged independent cybersecurity professionals to investigate and remediate the incident;
- Implemented additional security measures to reduce the likelihood of a similar event in the future; and
- Arranged complimentary identity-protection services through IDX for impacted individuals.
Your Recommended Next Actions
- Carefully review the breach letter to understand which of your data elements were affected.
- Enroll in the free IDX services before the April 12, 2026 deadline using the enrollment code in the letter.
- Monitor your credit reports and financial accounts for unfamiliar activity.
- Consider placing a fraud alert or security freeze with the major credit bureaus if you notice suspicious activity.
Download Official Breach Notice (PDF)
Company Overview
Full Legal Name: Posillico, Inc. (Posillico)
- Website: posillicoinc.com
- Headquarters: 1750 New Highway, Farmingdale, NY, USA
- Industry: Heavy civil construction
- Year founded: 1946
- Employees: 500 – 1,000
Frequently Asked Questions
I received a data breach letter from Posillico — what should I do?
Follow the instructions in the letter, enroll in the complimentary IDX identity-protection services before April 12, 2026, and monitor your financial accounts for unusual activity.
How do I submit a claim related to the Posillico data breach?
If you have experienced fraud or costs you believe are linked to this incident, document all evidence and reach out for a free legal consultation to discuss potential claims.
Am I eligible to join a lawsuit against Posillico?
Eligibility depends on several factors, including the nature of the information exposed and any resulting harm. Request a case evaluation to learn about your specific options.
What information did the Posillico breach expose?
The notice states it included your name and other personal data elements. Check your letter for the exact details pertaining to you.
Did Posillico offer credit monitoring, and for how long?
Yes. Posillico is offering complimentary credit monitoring, dark-web monitoring, a $1 million identity fraud loss reimbursement policy, and identity-recovery assistance through IDX. The enrollment deadline is April 12, 2026. Duration details are provided in the enrollment packet.
How can I get the official breach notice (PDF) for Posillico?
You can download the full notice directly from the Maine Attorney General’s website using the button above or this link.
