Tired of creating yet another username and password? Social authentication lets users access your application with accounts they already trust. It's not just convenient—it's smart business. Sites using social login see 20-40% higher conversion rates compared to traditional registration forms. Understanding social authentication and its best practices is essential for creating secure and user-friendly experiences, particularly in headless architectures like Strapi 5. Social authentication uses existing accounts (Google, Facebook, etc.) to simplify login, eliminating the need for new credentials. OAuth 2.0 and OpenID Connect protocols form the foundation of secure social authentication implementation. Proper token handling and security practices prevent common vulnerabilities like XSS attacks and token theft. Modern headless CMS platforms like Strapi 5 support integration with various social authentication providers, allowing easy setup for providers like Facebook, GitHub, and Google through their Strapi social authentication features.