How to Implement Zero-Trust Authentication in Your Web Apps

Zero-trust authentication replaces traditional perimeter-based security by continuously verifying every user, device, and request. The implementation involves multi-factor authentication with TOTP, secure JWT management with short-lived tokens and refresh mechanisms, role-based access control with fine-grained permissions, continuous verification through device fingerprinting and behavioral analysis, and automated security monitoring with threat detection and response systems. This approach reduces breach costs, improves compliance, and provides better protection against modern threats like credential theft and insider attacks.