Sun Communities, Inc. reported a security incident to the New Hampshire Attorney General on February 6, 2026. The breach involved a social engineering attack (phishing) targeting two employees, leading to unauthorized access and data exfiltration from December 25, 2025, to January 5, 2026. The incident was discovered on January 6, 2026. Three New Hampshire residents were affected, with data including names, SSNs, DOB, driver's licenses, and financial account numbers exposed. Sun engaged forensic specialists, secured systems, and provided credit monitoring services.