Sun Communities Data Breach Lawsuit Investigation
Sun Communities is notifying individuals of a cyber-security incident that may have exposed sensitive personal information. This page details what happened, what data was involved, and how affected residents can protect themselves or join potential legal actions. Received a letter? Act now to secure your rights.
What Happened?
On February 6, 2026, Sun Communities, Inc. (“Sun Communities, Inc.,” “Sun,” “company,” “we”) filed a notice with the Maine Attorney General about unauthorized access to its systems. An internal forensic investigation confirmed that certain files containing personal information were accessed, viewed, or removed by an unknown actor.
Information Potentially Exposed
Sun’s investigation identified the following categories of data that could have been involved:
First and last name
Address
Date of birth
Driver’s license, passport, or national ID number
Financial account information (bank account and routing numbers)
Social Security number
Company Response
According to the notice, Sun Communities:
“Quickly took steps to eliminate the threat of further unauthorized access.”
Safeguarded remaining data and engaged external forensics specialists to determine the scope of the breach.
Implemented “immediate enhancements” to systems, security, and practices.
Steps You Can Take
Enroll in the free Cyberscout credit-monitoring service as soon as possible.
Review bank, credit-card, and other financial statements for unfamiliar transactions.
Check your credit reports for new accounts or inquiries you don’t recognize.
Consider placing a fraud alert or security freeze with the major credit bureaus.
File a police report if you detect identity theft and retain a copy for your records.
Stay alert during tax season for any unexpected filings in your name.
Company Overview
Below is a snapshot of the organization whose systems were involved.
Website: suncommunities.com
Headquarters: 27777 Franklin Road, Suite 300, Southfield, Michigan, United States
Founded: 1975
Industry: Real Estate Investment Trust (REIT)
Employees: 6,590
Ticker Symbol: SUI (NYSE)
Sources
Impacted Entities
Frequently Asked Questions
I received a data breach letter from Sun Communities — what should I do?
Follow the enrollment instructions for the free Cyberscout credit-monitoring service, monitor your financial accounts, and consider additional protections such as a credit freeze.
How do I submit a claim related to the Sun Communities data breach?
You may be able to pursue monetary or injunctive relief through individual arbitration or a class action. Keep the mailed notice and any proof of related losses, then consult with a data-breach attorney about your options.
Am I eligible to join a lawsuit against Sun Communities?
Eligibility generally depends on whether your personal information was involved and if you experienced financial or other harm. An attorney can evaluate your specific circumstances once you have your notification letter.
What information did the Sun Communities breach expose?
The incident involved names, addresses, dates of birth, Social Security numbers, driver’s license or passport numbers, and certain bank account information.
Did Sun Communities offer credit monitoring, and for how long?
Yes. The company is providing complimentary Single-Bureau Credit Monitoring, Credit Report, and Credit Score services through Cyberscout, plus identity-theft insurance. The exact monitoring period is stated in the enrollment materials.
How many people were affected by the Sun Communities breach?
The notice to the Maine Attorney General did not specify an exact victim count. Sun Communities has not publicly released total figures as of the most recent filing.
How can I get the official breach notice (PDF) for Sun Communities?
You can download the Maine Attorney General filing directly here or via the button above.
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