Zero Trust in Practice: Where to Start
Zero Trust is a security strategy based on the continuous validation of access requests. Its adoption can begin gradually by strengthening identities, devices, applications, and data.
Zero Trust is often perceived as something complex and limited to large enterprises. In practice, however, it can be adopted gradually, starting with controls that help reduce risks quickly, such as identity protection, access reviews, and greater visibility into users, devices, and data.
Even so, many organizations have not yet taken the first steps. This is often due to the perception that Zero Trust requires major changes, tool replacements, or significant investments. In addition, the lack of clarity around where to start makes it difficult for many companies to determine which initiatives to prioritize and how to begin the journey.
In this article, we will clarify what is really behind the Zero Trust concept and how to start putting this strategy into practice.
In this article, you will learn:
What Zero Trust is.
How the Zero Trust strategy works.
The key principles of the model.
How to implement Zero Trust step by step.
What is Zero Trust?
Zero Trust is a security strategy based on the principle that no user, device, or application should be trusted by default. Therefore, all access requests must be continuously validated, considering identity, device status, context, risk, and other signals before and during resource access.
Access decisions consider factors such as user identity, device integrity, location, data sensitivity, and session risk level.
Contrary to what many people think, Zero Trust is not a product or a specific technology that can simply be deployed. It is a security approach that guides the definition of policies, controls, and processes to protect identities, access, devices, applications, and data.
This approach is built on three core principles:
Verify explicitly: Continuously validate users, devices, and access requests.
Use least privilege access: Grant only the permissions required.
Assume breach: Limit the impact of incidents and detect threats quickly if a breach occurs.
How to Start Your Zero Trust Journey in 5 Steps
1. Identify what needs to be protected
Map the organization's most critical assets, such as data, applications, users, and devices. This helps define priorities and focus protection efforts.
2. Understand your main risks
Assess vulnerabilities, threats, and potential business impacts. This diagnosis helps identify which measures should be prioritized.
3. Strengthen identities and access
Implement Multi-Factor Authentication (MFA), review permissions, adopt Conditional Access, and apply the principle of least privilege.
4. Increase environment visibility
Gain continuous visibility into users, devices, applications, and data to identify risky behaviors and respond quickly to potential threats.
5. Monitor and evolve continuously
Regularly monitor access and activities to detect threats, adjust controls, and track the evolution of your security posture.
These initiatives can be implemented in phases, according to the maturity and needs of each organization, making Zero Trust adoption simpler, more structured, and more effective.
More than a one-time project, Zero Trust is an ongoing security strategy. As new users, devices, applications, and threats emerge, controls must be continuously reviewed and improved.
Count on Teltec Data to help implement a Zero Trust approach in your organization. Contact our experts!
Frequently Asked Questions About Zero Trust
What is Zero Trust?
Zero Trust is a security strategy based on the principle that no user, device, or application should be trusted by default. Every access request must be continuously validated based on identity, context, and risk.
Is Zero Trust a tool or a product?
No. Zero Trust is not a specific tool or product. It is a security approach that guides the implementation of policies, processes, and technologies to protect access, devices, applications, and data.
What are the pillars of Zero Trust?
The three core principles are:
Verify explicitly.
Use least privilege access.
Assume breach.
These principles help reduce risks and limit the impact of potential security incidents.
Can any company adopt Zero Trust?
Yes. Zero Trust can, and should, be implemented gradually and adapted to each organization's level of maturity. There is no need for disruptive changes or the replacement of the entire existing infrastructure.
