• May 2026 •

Metropolitan Marine Maintenance Contractors' Association (MMMCA) Data Breach

Last Updated on August 31, 2026

If your information was compromised in the MMMCA data breach, you may be able to start a class action to collect money for the harm you’ve suffered.

• Keep reading for more information

At A Glance

What's Going On?: Attorneys need to hear from people affected by the MMMCA data breach as they investigate whether a class action lawsuit can be filed.
Does This Cost Anything?: It costs nothing to get in touch or to talk to someone about your rights.
What Can I Get?: If filed and successful, a class action lawsuit could provide consumers with money for any harm resulting from the MMMCA breach.

MMMCA Data Breach: Lawsuit Investigation

Attorneys working with ClassAction.org are looking into whether a class action lawsuit can be filed in light of the MMMCA data breach.

As part of their investigation, they need to hear from individuals who had their information exposed in the incident, including those who received notice of the MMMCA data breach or otherwise believe they are affected.

MMMCA Security Incident: What Happened?

The Metropolitan Marine Maintenance Contractors' Association (MMMCA), which represents marine maintenance contractors working in New York and New Jersey harbors, has disclosed a breach impacting 25,528 people.

A sample notification letter (pictured below) states that on April 7, 2026, MMMCA and the Metro-ILA Pension Fund, Fringe Benefit Fund, and Individual Account Retirement Fund, which provide employee benefits to MMMCA members, detected unauthorized network activity. An investigation revealed that a threat actor accessed the Funds' and MMMCA's environment via one of their virtual private networks.

The information that may have been compromised in the Metropolitan Marine Maintenance Contractors’ Association data breach includes Social Security numbers, dates of birth, phone numbers, and addresses.

Those potentially affected by the MMMCA data breach were notified beginning on May 22, 2026.

What You Can Do After the MMMCA Data Breach

If your information was exposed in the MMMCA data breach, attorneys want to hear from you. You may be able to start a class action lawsuit to recover compensation for loss of privacy, time spent dealing with the breach, out-of-pocket costs, and more.

A successful case could also force MMMCA to ensure they take proper steps to protect the information they were entrusted with.