Firstsource Health Plans Discloses Data Breach Due to Programming Error
Firstsource Health Plans and Healthcare Services LLC, a third-party service provider for health insurance clients, recently reported a data breach stemming from a programming error in one of its platforms. The incident may have exposed sensitive personally identifiable information (PII) of individuals whose data was processed through the company’s services.
The affected platform facilitates document uploads including claims and correspondence on behalf of healthcare providers and health plan members. Due to the error, unauthorized access to or viewing of protected data may have occurred. Among the potentially exposed information were Social Security numbers.
The breach was officially disclosed to the Massachusetts Office of Consumer Affairs and Business Regulation on July 15, 2026. While the exact number of affected individuals nationwide has not been released, Firstsource is offering two years of complimentary credit monitoring to those impacted. Affected individuals can enroll using a unique code provided in their notification letters, with a 90-day enrollment window from the date of the letter.
Firstsource serves as a behind-the-scenes processor for health insurance plans, meaning many affected individuals may have had their data handled by the company without direct awareness. The company has set up a dedicated helpline (1-800-405-6108) and mailing address for inquiries related to the breach.
Source: https://www.claimdepot.com/data-breach/firstsource-health-plans-2026
Firstsource Health Plans TPRM report: https://www.rankiteo.com/company/medassist-firstsource
"id": "med1784132982",
"linkid": "medassist-firstsource",
"type": "Breach",
"date": "7/2026",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"{'affected_entities': [{'industry': 'Healthcare',
'name': 'Firstsource Health Plans and Healthcare '
'Services LLC',
'type': 'Third-party service provider'}],
'attack_vector': 'Programming Error',
'customer_advisories': 'Affected individuals notified via letters with a '
'90-day enrollment window for credit monitoring',
'data_breach': {'personally_identifiable_information': 'Social Security '
'numbers',
'sensitivity_of_data': 'High (Social Security numbers '
'included)',
'type_of_data_compromised': 'Personally identifiable '
'information (PII)'},
'date_publicly_disclosed': '2026-07-15',
'description': 'Firstsource Health Plans and Healthcare Services LLC, a '
'third-party service provider for health insurance clients, '
'reported a data breach stemming from a programming error in '
'one of its platforms. The incident may have exposed sensitive '
'personally identifiable information (PII) of individuals '
'whose data was processed through the company’s services. The '
'affected platform facilitates document uploads including '
'claims and correspondence on behalf of healthcare providers '
'and health plan members. Due to the error, unauthorized '
'access to or viewing of protected data may have occurred. '
'Among the potentially exposed information were Social '
'Security numbers.',
'impact': {'data_compromised': 'Sensitive personally identifiable information '
'(PII), including Social Security numbers',
'identity_theft_risk': 'High',
'systems_affected': 'Document upload platform for claims and '
'correspondence'},
'post_incident_analysis': {'root_causes': 'Programming error in document '
'upload platform'},
'recommendations': 'Two years of complimentary credit monitoring for affected '
'individuals',
'references': [{'source': 'Massachusetts Office of Consumer Affairs and '
'Business Regulation'}],
'regulatory_compliance': {'regulatory_notifications': 'Disclosed to the '
'Massachusetts Office '
'of Consumer Affairs '
'and Business '
'Regulation'},
'response': {'communication_strategy': 'Dedicated helpline (1-800-405-6108) '
'and mailing address for inquiries; '
'notification letters to affected '
'individuals'},
'title': 'Firstsource Health Plans Discloses Data Breach Due to Programming '
'Error',
'type': 'Data Breach'}