(ISC)2 Certified in Cybersecurity Practice Exam

What is the primary concept of Zero Trust architecture?

1. Trust by default

2. Access based on user credentials only

3. No trusted space within the network

4. Minimal cybersecurity measures

The correct answer is: No trusted space within the network

The primary concept of Zero Trust architecture is centered around the idea that no entity, whether inside or outside the organization, should be trusted by default. This means that every access request must be verified, regardless of the origin of the request. In a Zero Trust model, the traditional notion of a secure perimeter is eliminated; instead, constant verification and validation are required to ensure that only authorized users and devices can access critical resources and data. This approach significantly enhances cybersecurity by minimizing the risk of lateral movement within the network, which attackers often exploit once they gain a foothold. It recognizes that threats can come from both internal and external sources, leading to a more robust strategy for protecting sensitive information and systems. Other choices suggest approaches that do not align with the fundamental principle of Zero Trust. For instance, the concept of "trust by default" opposes the Zero Trust philosophy, as it assumes certain entities are inherently safe. Similarly, relying solely on user credentials for access ignores the need for continuous verification which is central to the Zero Trust model. The option regarding minimal cybersecurity measures fails to recognize the comprehensive security protocols that a Zero Trust architecture employs, which often includes multi-factor authentication, fine-grained access controls, and real-time monitoring.