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The network security evolution

Traditionally, network security was based on the notion of a secured network perimeter that was difficult to access from outside. This approach ensured that unwanted traffic would stay outside, while providing wide access to the network to those who managed to get in. The problem with this concept was and still is, that once a user or attacker had access to a network, they were free to move laterally to reach critical assets.

The anatomy of the modern network, where users can connect from anywhere using their own devices, where data and systems can be located on-premises or in the cloud, has made the perimeter approach inadequate for most businesses.

This evolution made way to a new approach called Zero Trust Network Access(ZTNA).

What is Zero Trust Network Access (ZTNA)?

Zero Trust is a strategic approach to cybersecurity that secures an organization’s network by eliminating implicit trust. This method continuously authenticates and monitors every access attempt in the network at every stage to verify the identity of the users and devices.

ZTNA uses strong authentication methods and leverages network segmentation to apply ‘Least Access Policies’.

Where to begin?

Many organizations have components of the ZTN already deployed in their environments. This makes ZTN, an interesting way for businesses to improve their security by stacking solutions on top of those they already have. One thing to consider however, is the compatibility of the systems. Fortunetely, many solution providers offer full Zero-Trust-Network solutions that can be stacked in order to achieve this goal.

In a nutshell, a Zero-Trust-Network strategy consist of the following 3 main blocks:

  1. Establishing initial level of trust when endpoint or device connects to network
  2. Give the minimum level of access it needs to make sure it remains secure
  3. Monitor the endpoint at all times for as long as it is connected to the network

One important step is to understand who the users are, which applications they use and how they connect. This will help determine and enforce policies that ensure secure access to your critical assets while limiting unnecessary permissions.

At the user level the goal is to have strong authentication of user identity, the application of “least access” policies, and the verification of user device integrity.

Why Prival?

At Prival, we believe that businesses should have access to cutting-edge technology that allows them to secure their network from modern threats and dangers.

Having recently deployed Zero-Trust solutions for our clients, we are confident we can help your business achieve an optimised cybersecurity posture.

Contact our team to find out more about our Zero-Trust solutions.