Which of the following is not a common element assessed in a zero-trust model?

In the context of a zero-trust model, the primary focus is on security measures that verify every user or device trying to access resources. This includes strict user access controls, data encryption methods, and network segmentation.

User access controls are essential as they determine who has permission to access what resources, ensuring that only authenticated and authorized individuals can access sensitive information. Data encryption methods are crucial because they protect data both at rest and in transit, making it unreadable to unauthorized users. Network segmentation involves dividing the network into distinct zones, which enhances security by limiting the access and movement of potential attackers within the network.

While a business model may influence security strategies and resource allocation, it is not a direct element assessed within the zero-trust framework. The zero-trust model is more concerned with the security posture and controls that protect an organization's data and systems rather than the foundational business structure. Thus, the correct answer indicates that the business model does not feature as a common element evaluated in implementing a zero-trust security approach.