What are the differences between zero trust and traditional firewalls?

Zero Trust differs from traditional firewall-based security approaches by assuming that threats could be both external and internal, and does not automatically trust any user or device, even if they are within the network perimeter. It enforces strict identity verification, controls access based on policies, and continuously monitors and validates device health and security posture. This model is more adaptable to modern threats as it provides granular security controls, enables real-time adaptive access based on risk factors, and can effectively address challenges associated with mobile and remote workforces, cloud services, and advanced persistent threats.