Session-Based Authentication vs Token-Based Authentication: Key Differences Explained

The article argues that monolithic authentication hinders scalability and resilience in modern B2C microservices, recommending a dedicated identity service using JWTs, API gateways, and passwordless methods (e.g., magic links and passkeys) to improve security and user experience. It promotes zero-trust principles with scope-based authorization (OAuth2/OIDC), mTLS for service-to-service trust, least privilege, encryption of PII, refresh token rotation, and pragmatic revocation strategies, emphasizing that strong identity architecture reduces phishing, credential stuffing, and lateral movement risks while enabling performance and retention gains.