5 Authentication Features You Should Know. Authentication isn’t just about logging in. It involves multiple layers of security, user experience, and compliance. Here are five auth features you should consider adding to your applications to enhance security and provide a seamless user experience: 1) Login & Registration Includes secure credential storage, password hashing, and customizable user flows for seamless onboarding. 2) Single Sign-On (SSO) Lets users log in once and access multiple apps via OAuth 2.0, OIDC, or SAML. 3) Multi-Factor Authentication (MFA) Adds a second layer of security with TOTP codes, biometrics, or push notifications. 4) Passkeys (WebAuthn) Passwordless authentication using biometrics and device-native security for a seamless login experience. 5) Magic Links One-time login links sent via email, eliminating the need for passwords while enhancing UX. How do we implement these features? Building from scratch is very time-intensive, requires expertise in security, UI/UX, email systems, and compliance. That's why auth providers (CIAM solutions) like FusionAuth are so popular. They abstract away the work while providing us full control. FusionAuth is an auth provider that I've been very impressed with. 🔹 Comprehensive authentication & security Covers authentication, authorization, user and org management, and threat detection. 🔹 Self-host or use their cloud Unlike many providers, FusionAuth lets you develop, test, and deploy locally or in the cloud. 🔹 Feature-rich free tier Generous free plan to get started without commitment. Check it out: lucode.co/fusionauth-z7td