Chalmers Insurance Group Data Breach Lawsuit Investigation
Chalmers Insurance Group has notified regulators and policyholders of a confirmed network intrusion that occurred in April 2025. If you received the breach letter dated October 6, 2025, you may qualify for free identity-monitoring and potential compensation. Use the information below to safeguard your data and explore your legal rights.
Incident Overview
On April 13, 2025, Chalmers Insurance Group detected unusual activity on its network. A forensic investigation assisted by independent cybersecurity specialists determined that certain files were accessed without authorization between April 8 and April 10, 2025.
By September 2025, the company confirmed that personal information was present in the compromised files. Chalmers began mailing written notices to affected individuals on October 6, 2025.
Key Dates
- Breach window: April 8 – April 10, 2025
- Breach discovered: April 13, 2025
- Consumer notifications mailed: October 6, 2025
- Regulatory filing (Maine): October 10, 2025
- Public update: October 11, 2025
What Information Was Exposed?
The notification letter states that the compromised files “may have included your personal information.” Specific data elements were not listed publicly, but typically insurance-related records can contain:
- Full name
- Address and contact details
- Insurance policy information
- Financial or claims data
Review the mailed notice for the exact categories that pertain to you.
Company Response
Immediately after detection, Chalmers:
- Isolated affected systems and launched a comprehensive forensic investigation.
- Engaged outside cybersecurity experts to validate findings.
- Implemented additional technical safeguards to reduce future risk.
- Partnered with Kroll to provide complimentary identity-monitoring services, including credit monitoring, fraud consultation, up to $1 million in identity-fraud reimbursement, and restoration support.
Download Official Breach Notice (PDF)
Next Steps for Affected Policyholders
- Activate your free Kroll services. Visit enroll.krollmonitoring.com and use the membership number provided in your letter.
- Monitor financial accounts. Review bank, credit-card, and insurance statements for unauthorized activity.
- Place fraud alerts or credit freezes. Contact Equifax, Experian, and TransUnion if you notice suspicious activity.
- Retain documentation. Keep copies of the breach notice and any related correspondence for your records.
- Explore legal options. You may be entitled to damages or injunctive relief. Consult a consumer-privacy attorney for a no-cost case evaluation.
Company Overview
- Legal name: Chalmers Insurance Group
- Website: chalmersinsurancegroup.com
- Headquarters: 100 Main St, Bridgton, ME, USA
- Industry: Insurance
- Year founded: 1857
- Employees: ~100
- Support/Contact: chalmersinsurancegroup.com/contact
- Social media: Facebook, Instagram, LinkedIn, X, YouTube
Frequently Asked Questions
How did the Chalmers Insurance Group data breach happen?
According to Chalmers, unauthorized actors accessed certain network files between April 8 and April 10, 2025. The specific entry vector has not been publicly disclosed.
What personal data was involved in the Chalmers Insurance Group breach?
The letter indicates that customer information contained in the accessed files may have included personal details. Review your individual notice for the exact data elements pertaining to you.
Is Chalmers Insurance Group offering free credit monitoring?
Yes. The company is providing complimentary identity-monitoring services through Kroll. Follow the enrollment instructions in your notice letter.
Can I file a lawsuit over the Chalmers Insurance Group data breach?
Possibly. Consumers whose information was exposed may pursue legal claims for damages, enhanced security measures, and/or credit-monitoring reimbursement. Consult an attorney specializing in data-privacy litigation for guidance.
Where can I read the official Chalmers Insurance Group breach notice?
The full notification filed with the Maine Attorney General is available here.