ZTNA (Zero Trust Network Access) is a security model for accessing applications and resources, where all access is continuously verified based on identity, context, and risk.

How does ZTNA differ from VPN?

VPNs often provide broad network access after login, while ZTNA grants access only to specific applications or services.

Why is ZTNA important?

It reduces the risk of unauthorized access and limits the ability of attackers to move laterally within a network.

How does ZTNA work in practice?

Users are granted access to individual applications based on verified identity and context, with continuous authentication and validation.

ZTNA is used in modern security architectures, especially in Zero Trust and SASE environments, and in organizations with distributed users and cloud-based services.

ZTNA (Zero Trust Network Access)

What is ZTNA?

ZTNA (Zero Trust Network Access) is a security model for accessing applications and resources, where access is continuously verified based on identity, context, and risk.

Unlike traditional solutions such as VPNs, where users often receive broad network access after authentication, ZTNA provides access only to specific applications or services. This significantly reduces the risk of lateral movement inside the network.

ZTNA is built on the principle of never trusting users or devices by default, even if they are inside the network. Every access request must be explicitly verified.

A simple way to understand ZTNA is to think of it as granting access room by room instead of unlocking the entire building.

Sicra and ZTNA

ZTNA is a key component of modern security architecture, especially within Zero Trust and SASE.

At Sicra, it is used in designing access solutions that provide secure, controlled access to applications without exposing the full network.

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