Which of the following concepts involves the establishment of trust and no default assumptions?

The concept you're identifying revolves around the Zero Trust model, which fundamentally challenges the traditional assumptions of network security that typically allow for implicit trust based on network location. In a Zero Trust architecture, every request for access to resources—whether it originates from inside or outside the network—is treated as if it originates from an untrusted source. This approach minimizes security risks by defaulting to the “never trust, always verify” principle.

Trust is established through verification mechanisms rather than assuming that users and devices already within the network perimeter are safe. Access is granted based on strict authentication and authorization processes, ensuring that users only have access to the information and systems necessary for their roles.

By implementing Zero Trust, organizations effectively reduce the attack surface and protect sensitive data against both external threats and insider threats. This model is increasingly vital in today’s environment, where remote work and cloud services blur traditional security boundaries, necessitating robust security frameworks that ensure trust is constantly evaluated, rather than presumed.