How does Zero Trust support the principle of defense in depth?

Zero trust security and the principle of defense in depth both emphasize the importance of implementing multiple layers of security measures to protect networks, systems, and data from cyber threats. Zero trust shifts away from the traditional approach of assuming trust within the internal network and instead focuses on verifying and validating every user and device trying to access resources, regardless of their location.

By applying the principles of zero trust, organizations establish strict access controls, continuous monitoring, and least privilege access policies. This aligns well with defense in depth, which involves deploying various security controls (such as firewalls, intrusion detection systems, encryption, multi-factor authentication, and strong access controls) at different layers of the network to create a more robust and comprehensive security posture. In essence, zero trust and defense in depth complement each other by reinforcing the importance of multiple security layers to provide effective protection against evolving cyber threats.