What is Zero Trust?
Zero Trust security is not a specific technology. Rather, it’s a strategic approach developed in response to the growing ineffectiveness of perimeter defenses in cybersecurity. At its core, the Zero Trust approach calls for IT security teams to assume no user, device or application, whether outside or inside the network, can be deemed safe. Therefore, each must be validated before being allowed access to network assets.
A Zero Trust architecture abolishes the idea of a trusted network inside a defined corporate perimeter. At the core of Zero Trust is the application of “microperimeters” of control around sensitive data assets. The idea here is to reduce the attack surface and prevent lateral movement.
Developed by the technology analyst firm Forrester Research, the Zero Trust approach is gaining traction as a cybersecurity strategy and framework to help IT security leaders develop robust protection, detection and response capabilities to defend an organization’s vital digital business ecosystem. Simply put, it provides CISOs and other security leaders with a more rigorous security posture for today’s world of escalating risk.
What is ZTX?
ZTX stands for the Zero Trust extended Ecosystem, which is what Forrester Research uses to refer to the strategic approach that encompasses various technologies, processes and the people who use them.
However, ZTX can help you map tools and vendors to specific pillars of the Zero Trust model to evaluate and qualify what areas of the framework they can help you address.
Ultimately, however, it’s up to each organization to articulate its own ecosystem, determine protection requirements, and create Zero Trust security policies the adequately cover its business processes, transaction flows, and determine how to manage Zero Trust network access.
Zero Trust security – Guardicore’s approach
To support a Zero Trust ecosystem successfully, you need two fundamental capabilities. First, you must have total visibility into your network environments to classify workloads and data accurately within microperimeters – you can’t secure what you can’t see.
Guardicore helps you overcome this challenge by providing complete visibility of network environments with workload context so that you can create enforce Zero Trust microsegementation policies.
Then, you’ll need to enforce Zero Trust security policies around what can and can’t communicate with workloads in each of your defined microperimeters. Using software-defined segmentation for this requirement offers a more agile approach for segmenting networks and isolating applications than internal firewalls and VLANs. This enables security teams to move to a Zero Trust posture more quickly and with less complexity for ongoing policy management.
Zero Trust - FAQ
How do you achieve Zero Trust?
There is no silver bullet when it comes to successfully realizing Zero Trust at your organization. However, some tools and technologies exist that enable organizations to implement the model more quickly and effectively. Look for platforms closely aligned to the core Zero Trust pillars that provide you with visibility and the ability to establish microperimeters within each.
What is ZTNA?
Coined by Gartner, Zero Trust Network Access (ZTNA) refers to solutions help you secure remote users connecting to your network with access controls. With this approach, users can only access what they need based on their current role and context, reducing risk and shrinking your attack surface.
Who invented Zero Trust?
Forrester Research initially introduced Zero Trust in 2010 as a response to the growing ineffectiveness of perimeter-based cybersecurity. Since traditional network-based security is no longer adequate to protect applications and data in today’s dynamic, hybrid data center and cloud environments, security pros must find new ways to manage risks and mitigate threats effectively.
Why do businesses need to consider implementing Zero Trust?
The traditional “moat and castle” defensive strategy no longer works. Building higher and stronger walls doesn’t prevent determined bad actors from breaching perimeter defenses and wreaking havoc inside your enterprise network. Organizations that apply the core principles of Zero Trust can greatly reduce risk by preventing unauthorized movement within a network.
What does Zero Trust have to do with microsegmentation?
A Zero Trust architecture abolishes the idea of a trusted network inside a defined corporate perimeter. At the core of Zero Trust is the application of “microperimeters”, which isolate critical assets from the broader IT environment. Organizations can drastically reduce the attack surface of critical systems and the risk of data exfiltration by applying segmentation or microsegmentation to see and manage communications to and from its microperimeters.
Why is Zero Trust security important?
The perfect storm of digital transformation, agile DevOps, and a stark increase in the number of high-profile data breaches have challenged IT security’s status quo and prompted security leaders to explore new strategies to better secure digital assets for organizations of any size. The old premise of keeping the bad guys out and letting the good guys in via bigger walls at the perimeter has proven it is no longer a sustainable strategy for success. The new rule is that internal traffic that used to be trusted can no longer be.
Is Zero Trust security achievable?
Yes! However, like any good security strategy, your Zero Trust security posture can always be improved, and there is no defined finish line. However, by addressing the core pillars of Zero Trust defined by Forrester, you can not only achieve a solid foundation in Zero Trust security but continually advance your organization’s maturity.
How will Zero Trust security affect my network?
Zero Trust can protect your business from advanced threats and helps minimize their impact. It more easily supports new business and operational models that depend on speed and flexibility. And, it enables compliance with industry regulations that call for the separation of critical from non-critical assets and stronger protection of consumer data. Traditional security approaches focused on external threats fall short on all these measures.
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