2. Which security model assumes the worst-case security scenario, and protects resources accordingly? Zero trustDefense-in-depthRole-based access control

The security model that assumes the worst-case security scenario and protects resources accordingly is the Zero Trust model.

Explanation:

1. Zero Trust Model: This security paradigm operates on the principle of "never trust, always verify." It assumes that threats could be internal or external and that no user or device should be trusted by default, even if they are inside the network perimeter. As a result, every access request is thoroughly verified before granting permissions, regardless of the location of the requestor.

2. Defense-in-Depth: This approach layers multiple security measures to protect resources, but it does not inherently assume that all parties might be untrustworthy. Instead, it focuses on strengthening security posture through redundancy across various layers.

3. Role-Based Access Control (RBAC): This model grants access based on the roles assigned to users within an organization. While it helps enforce security policies, it does not assume a worst-case scenario on its own.

Therefore, the correct answer is Zero Trust.