Lincoln Retirement Services Discloses Data Breach Exposing Financial and Personal Information Lincoln Retirement Services Company LLC, a subsidiary of Lincoln Financial Group, recently reported a data breach involving unauthorized access to sensitive personal information. The incident, disclosed to the Massachusetts Office of Consumer Affairs and Business Regulation on June 2, 2026, exposed financial account details and Social Security numbers. Consumer notification letters were sent on May 29, 2026, though the exact number of affected individuals across the U.S. has not been released. Details surrounding the breach including how the unauthorized access occurred, when it took place, and how it was detected remain unclear. In response, Lincoln Retirement Services provided affected individuals with guidance on mitigating risks, including steps to place fraud alerts, request security freezes, and monitor credit reports for suspicious activity. For further inquiries, affected individuals were directed to contact Lincoln’s Customer Contact Center at 800-234-3500 (Monday–Friday, 8 a.m.–8 p.m. ET). The company has not yet disclosed additional information on the scope or origin of the breach.