Security in Digital-Health Products at CVS Health: Architecture, Threat Models, and Assurance Mechanisms

The rapid adoption of digital-health products has transformed healthcare delivery while introducing complex security and privacy challenges. CVS Health, as a major provider of digital-health services, integrates mobile applications, cloud platforms, APIs, and connected healthcare systems that handle highly sensitive patient data. This research examines the security architecture of digital-health products at CVS Health, focusing on system design principles, threat models, and assurance mechanisms. The study analyzes common attack vectors such as data breaches, API misuse, identity compromise, and supply-chain risks within digital-health ecosystems. It further explores the application of layered security controls, including identity and access management, encryption, secure APIs, continuous monitoring, and regulatory compliance frameworks such as HIPAA. By evaluating threat modeling approaches and assurance practices, this paper highlights best practices for building resilient, trustworthy digital-health products. The findings provide architectural insights and security recommendations applicable to large-scale healthcare organizations aiming to ensure data confidentiality, integrity, availability, and patient trust.