zero trust networks

Zero Trust Networks Security: Why You Need It?

For better access to applications, here are ways to Zero Trust Networks Security adoption.

Zero Trust Networks Layers

The first layer of an organization’s security architecture is the network perimeter. The network perimeter contains infrastructure components that are responsible for enforcing access control, routing and switching traffic, and providing network security. They are also the primary points of ingress and egress for the entire organization’s computing resources.

The second layer is the DMZ or the demilitarized zone. The DMZ contains infrastructure components such as corporate web servers, firewalls, antivirus servers, and proxy servers. It is typically used to host public web resources for external users to access.

But it may also be used to host internal resources that need to be accessed from outside the organization’s network perimeter. Also, the third layer is internal users’ endpoints. The endpoints contain user applications and data that are not accessible from the external network.

Moreover, the endpoints in this layer have direct access to corporate infrastructure components in the internal network layer but do not have direct access to infrastructure components in the DMZ.

A fourth layer extends out from an organization’s physical perimeters, where Internet-accessible endpoints reside. This layer contains infrastructure components such as web proxies, edge firewalls, and VPN concentrators. It protects Internet-accessible assets from external threats or data loss.

Security Architecture

Zero Trust Architecture uses automated policy enforcement against a user’s device. This is to make sure that only authorized users have access to resources. Also, sensitive information needs to be encrypted in transit and at rest.

Zero Trust Security Architecture has four zones:

1. Trusted – internal network (DMZ)

2. Semi-trusted – perimeter network

3. Untrusted – external network

4. Unknown – Internet

Zero Trust Platform

It is a single control point that aggregates policy, identity, and security intelligence and applies it to protect the enterprise. It provides a single pane of glass view into the state of the network, enforcing access control. Also, it includes routing and switching traffic and providing network security.

Moreover, it monitors compliance with policies and can automatically remediate threats. This is an access control technology that uses identity context to enable or disallow actions based on who, what, where, when, how, and why. The access control policy is dynamically defined according to context.

This is enforced by Zero Trust Access on all endpoints with no need for additional appliances or software. Hence, it is a technology platform that resides on end-user devices and validates identity in real-time. To access the corporate network, users must be authenticated against an internal or external identity provider using zero-knowledge credentials.

Once authenticated, access is granted and monitored by Zero Trust Endpoint. An organization can deploy Zero Trust Endpoint. This is as a cloud service or on-premises as an appliance or virtual machine. So, this is an evolution of perimeter security architecture that recognizes that the increasing use of mobile devices enables employees to work remotely from home.

Thus, in other locations outside the corporate network perimeter. With Zero Trust Network Security Architecture, traditional network perimeters are eliminated. Thus, enabling organizations to secure internal resources against both external threats and data loss due to rogue insiders.

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