Firstsource Healthplans and Healthcare Services, LLC reported a data incident in July 2026 that potentially involved personal information. The company identified a programming error on its document upload platform that allowed unauthorized access. The incident was reported to the Massachusetts Attorney General on July 13, 2026. The compromised data likely includes names and Social Security numbers, as indicated in a sample notice sent to affected individuals. The full scope of the breach, including the total number of individuals affected, remains unknown at this time. Firstsource acts as a business associate for health benefit plans, receiving member information through those plans. Details regarding the total number of affected individuals and other potential data types may emerge as investigations continue. Official notices to consumers were sent, but the full details are not yet publicly accessible.