How to Use YubiKey for Secure FIDO2 Passwordless Login in Modern Web Apps
Visual Overview: graph TB subgraph "Authentication Methods" Auth[Authentication] --> Password[Password] Auth --> MFA[Multi-Factor] Auth --> Passwordless[Passwordless] MFA --> TOTP[TOTP] MFA --> SMS[SMS OTP] MFA --> Push[Push Notification] Passwordless --> FIDO2[FIDO2/WebAuthn] Passwordless --> Biometric[Biometrics] Passwordless --> Magic[Magic Link] end style Auth fill:#667eea,color:#fff style MFA fill:#764ba2,color:#fff style Passwordless fill:#4caf50,color:#fff Introduction Password-based authentication has long been the weakest link in application security. With phishing, credential stuffing, and password reuse rampant, modern organizations are looking toward passwordless authentication methods that are more secure and user-friendly. ...