Zero Trust Trust-Score Scope: A 2D Analysis of Cybersecurity Models

What Is the Zero Trust Model?

The Zero Trust model is an approach to cybersecurity that assumes no entity inside or outside a network’s perimeter can be automatically trusted. Instead, every access request must be verified and authorized on a continuous basis.

This model contrasts with traditional perimeter security, which relies on a fixed boundary to protect against unauthorized access.

How Does the Trust-Score Scope Work?

In this 2D scope, each access request is represented by a curve that decays over time as trust scores diminish without re-verification.

The Policy Enforcement Point (PEP) gate line and threshold line are key elements: requests crossing the PEP are either allowed or denied based on their current trust score relative to these lines.

Why Does Continuous Verification Matter?

Continuous verification ensures that even if an initial access request is granted, any subsequent anomalies can be detected and addressed immediately.

This approach significantly reduces the risk of unauthorized access by maintaining a high level of security vigilance at all times.

Comparing Zero Trust with Perimeter Models

Traditional perimeter models check trust only once, which means any breach that occurs after this initial check can go undetected until the next verification cycle.

In contrast, the Zero Trust model re-verifies access requests continuously, providing a more robust defense against evolving threats.

Frequently asked questions

Try it live

Everything above runs in your browser — open Zero Trust Trust-Score Scope (2D) and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.