Provide Secure Access to Anyone Anywhere

What is ZTNA

ZTNA stands for Zero Trust Network Access which is a security framework that shifts the focus from traditional perimeter-based security to a more holistic approach, where every user, device, and network connection is treated as untrusted by default. The main principle of ZTNA is “never trust, always verify,” which means that each access request must be authenticated, authorized, and continuously validated before granting access to resources or data.

Zero Trust Network Access architecture follows an adaptive trust model, operating on a need-to-know, least-privilege basis.

Under ZTNA, only authenticated and authorized users, endpoints, and applications are granted access to corporate resources. Access is centrally managed, policy-based, and granular, ensuring flexibility and security.

Why organizations need ZTNA

Connect Everything Securely

ZTNA provides flexible and secure access to users, sites, and partners using any device, anywhere in the world.

ZTNA Cloud

We offer integrated, smart routing via cloud-based ZTNA PoPs, ensuring higher performance.

True Zero Trust Architecture

By separating identity provider, traffic routing and ZTNA, the impact of a compromise can be minimized.

24x7 Fully Managed Service

Our ZTNA is delivered with all the required capabilities and functionalities to start using it today.

How ZTNA Works


ZTNA and VPNs (Virtual Private Networks) are both technologies that enable secure remote access to organizational resources. However, they differ in their approach, architecture, and security principles.

Trust model

ZTNA operates on a "never trust, always verify" principle, which means each access request must be authenticated, authorized, and continuously validated. VPNs, on the other hand, establish a secure tunnel to the organization's network, and once a user is connected, they are often granted broad access to resources.

Access control

Zero Trust Network Access enforces granular, context-aware access policies based on user identity, device, and other factors. Access is granted on a need-to-know basis and limited to specific applications or services. VPNs provide network-level access, which can potentially expose a larger attack surface to unauthorized users or malware.

Lateral Movement

ZTNA eliminates the possibility of lateral movement by granting access solely to necessary resources. In contrast, VPNs often provide users with access to the full internal network, which attackers could exploit.

User experience

ZTNA provides a more seamless user experience by granting access to specific applications without the need for a full network connection. VPNs often require users to establish a connection to the corporate network before accessing resources, which can be more cumbersome and slower.

Scalability and performance

ZTNA is typically more scalable and can handle a large number of users and connections more efficiently than traditional VPNs. This is particularly important in cloud-based or distributed environments, where traffic patterns and user locations can change rapidly.

Reinvent How You Deliver Network and Security in the Cloud with ZTNA

Integrate Open Systems ZTNA with our cloud-based Managed SASE service for maximum protection and security. Begin your SASE journey with ZTNA and add our other services –  Secure Web Gateway, Mobile Entry Point, Firewall, and CASB – as needed. You can conveniently manage all these services from a unified interface.

ZTNA is available as a stand alone product or as an add-on product to any of our Managed SASE service plans. Our plans combine 24×7 expertise focused on connecting and protecting users, apps, sites and clouds – all unified on an intelligent platform.