Which statement is true regarding communication in network security zones in a zero-trust model?

In a zero-trust model, the principle of "never trust, always verify" dictates that all communication is treated as potentially untrusted, regardless of the source or location. This model asserts that all communication should be secured to protect against unauthorized access and data breaches. Therefore, the statement that all communication is secured, regardless of the network security zone it occurs in, accurately reflects the foundational philosophy of zero trust.

The core of zero trust is that security controls are enforced at every level and for every communication, whether it is internal or external. This enhances security by requiring authentication and authorization for every data request, minimizing the risk of attacks from both outside and within the organization. By ensuring that all communication is secured, organizations can better protect sensitive data and maintain a robust security posture against evolving threats.