Cape Cod Five 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 Cape Cod Five 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 Cape Cod Five

Cape Cod Five is a community bank that has served customers across Cape Cod, the Islands, and Southeastern Massachusetts since 1855. The bank has grown significantly over the years, now holding over $5.7 billion in assets and operating 26 locations throughout its service area. The bank offers a wide range of financial products and services, including consumer and commercial banking, residential mortgages, investment management and trust services.

In September 2023, Cape Cod Five announced a partnership with Fidelity Bank, combining their mutual holding companies under a new multi-bank holding company called Mutual Bancorp. Both banks continue to operate independently under their established names and brands.

What Happened?

In August 2025, Cape Cod Five was impacted by a data breach involving Marquis Software Solutions Inc., a vendor providing digital and physical marketing and communications services. On Aug. 14, 2025, Marquis detected suspicious activity on its network and determined it was the victim of a ransomware attack. The investigation revealed that an unauthorized third party accessed Marquis’ network and may have acquired certain files containing sensitive information.

Cape Cod Five was one of several financial institutions affected by this incident. According to the disclosure to the Maine Attorney General’s office, 974 individuals in Maine were affected by the Cape Cod Five breach.

Possible Information Exposed

• Names
• Addresses
• Dates of birth
• Phone numbers
• Social Security or tax ID numbers
• Financial account information

Marquis Software solutions notified the Maine Attorney General's office of the data breach affecting Cape Code Five customers on Nov. 26, 2025, and began notifying impacted individuals via mail the same day.

Your Rights and Next Steps

If you received a notification regarding this data breach, there are important steps you can take to protect yourself and your information. Marquis, in coordination with Cape Cod Five, is offering complimentary credit monitoring and identity theft protection services through Epiq Privacy Solutions ID. This service includes credit monitoring, dark web monitoring, credit protection, change of address monitoring, and identity restoration assistance.

Affected individuals are encouraged to:

• Review account statements and monitor credit reports for unauthorized activity
• Take advantage of the free credit monitoring service being offered
• Consider placing a fraud alert or security freeze on credit reports with the major credit bureaus
• Report any suspicious activity to financial institutions, law enforcement, and the Federal Trade Commission

It is also important to remain vigilant over the next 12 to 24 months, as risks related to identity theft can persist long after a breach.

You May Be Entitled to Compensation

If you were affected by the Cape Cod Five 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.

Sources

• Maine Attorney General's office