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Maine State Credit Union via Marquis Software Solutions Data Breach Lawsuit Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Maine State Credit Union data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About Maine State Credit Union
Maine State Credit Union is a financial institution based in Maine, serving more than 35,000 members. Established in 1935, it began as a banking option for state employees and has since expanded its membership eligibility to include people who live, work, worship, or attend school in several counties across the state.
The credit union offers a wide range of financial services, including checking and savings accounts, loans, credit cards, and digital banking options.
What Happened?
On Aug. 14, 2025, Marquis Software Solutions, a vendor providing digital and physical marketing services to Maine State Credit Union, detected suspicious activity on its network. Marquis determined it was the victim of a ransomware attack, and an unauthorized third party accessed its systems through a SonicWall firewall.
After a forensic investigation, Marquis found that files containing personal information from Maine State Credit Union members may have been accessed and acquired. Marquis notified affected business customers between Oct. 27 and Nov. 25, 2025, and has been working to provide notifications to individuals and regulatory bodies.
Possible Information Exposed
- Names
- Addresses
- Phone numbers
- Social Security numbers
- Taxpayer Identification Numbers
- Financial account information
- Dates of birth
Marquis notified the Main Attorney General's office of the data breach on Nov. 26, 2026. According to the disclosure, 38,334 Maine residents were affected by this breach.
Your Rights and Next Steps
If you received a data breach notification from Maine State Credit Union, or Marquis, you have important rights and options. You may be entitled to seek compensation for any harm or inconvenience caused by this cybersecurity incident.
- Identity theft protection services: Sign up for the free Epiq Privacy Solutions ID identity theft protection services offered by Marquis.
- Monitor your accounts carefully: Check your financial statements regularly for suspicious activity or unauthorized transactions. If you notice anything unusual, contact your financial institution immediately.
- Fraud alert and credit reports: A fraud alert informs creditors to take extra steps to verify your identity before opening new accounts in your name. Consumers are also entitled to one free credit report annually from each credit bureau. You can request a fraud alert or a credit report by contacting any one of the three major credit bureaus.
- Seek legal help: Lawyers are ready to help you understand your rights and pursue compensation.
You May Be Entitled to Compensation
If your information was exposed in the Maine State Credit Union data breach, you may be eligible for compensation, which could include reimbursement for out-of-pocket expenses, time spent addressing the breach, or payment for emotional distress.
Lawyers are ready to help you take the next steps. To find out if you qualify and to join a lawsuit, complete the form below.
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