zero trust concept

A Practical Guide to Zero Trust Concept

Get started with the Zero Trust Concept for better cybersecurity protection. Read on to find out more.

Zero Trust Concept

ZTNA is a model for network security that focuses on shifting the trust away from the network perimeter. This is where it is vulnerable to breaches, to each endpoint device. It requires a fundamental shift in how we think about access control and data protection.

The Zero Trust Security Architecture (ZTSA) is a model used to build an enterprise security architecture. That is with emphasis on eliminating the traditional methods of network security. This concept relies on a single point of entry/exit.

The zero trust model requires a fundamental shift in how we think about access control and data protection. To succeed, it requires a security team that consists of business users and IT experts to work together. So, the business users are responsible for defining the rules used to manage access to data.

ZTNA Principles

Zero Trust is a framework that uses a “de-parameterization” approach to security. So, it focuses on controlling access based on identity and behavior, rather than the location of users and assets. Also, Zero Trust is primarily focused on eliminating Single Points of Failure (SPOF).

That is, a mechanism or technical component through which an attacker could compromise the entire network. Also, the concept of Zero Trust was introduced by Forrester Research in 2016, as an extension of BeyondCorp. So, the central idea behind Zero Trust is that “traditional network security architectures are now more vulnerable than ever.”

Moreover, this is before and organizations need to rethink their strategies completely. Zero Trust Architecture focuses on shifting trust away from the network perimeter. This is where it is vulnerable to attacks and shifting trust towards the devices themselves.

It requires a fundamental shift in how we think about access control and data protection. The model has four zones:

1. Trusted – internal network (DMZ)

2. Semi-trusted – perimeter network

3. Untrusted – external network

4. Unknown – Internet

Zero Trust Model Component

In the traditional model, data is protected by the perimeter or edge device. This is such as a firewall or router on the network’s edge. Under the Zero Trust model, data is protected by access control policies.

It decides what a user is permitted to do with the data. Hence, securing data requires more than just securing a device. Also, it requires defining and enforcing access control policies across all devices that access the data.

Zero Trust Security Architecture is built for security in scale. It uses automated policy enforcement against a user’s device. So, it makes sure that only authorized users have access to resources and that sensitive information needs to be encrypted in transit and at rest.

By adopting Zero Trust Security Architecture, organizations can build their security architecture. So, that must be in layers and centralize their security operations functions. Also, this is done by using automation and orchestration tools while decentralizing user management.

Thus, the Zero Trust Security Architecture is a security model that relies on direct user-to-user and device-to-device trust. It assumes that any untrusted network can be penetrated by unauthorized users. So, it focuses on controlling access to data based on identity and behavior, rather than the location of users and devices.

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