Cyber- & IT-Security 4 min read

Zero Trust and its role in hybrid infrastructure protection

In today’s threat landscape, where security perimeters are blurred, traditional infrastructure protection approaches are insufficient. The Zero Trust principle offers a radically different approach based on continuous trust verification.

Imagine this scenario: a remote employee connects to the corporate network via VPN. The traditional security model often grants them broad access to internal resources after a single authentication. But what if their device is compromised, or their credentials are stolen? This is precisely where the fundamental weakness of outdated approaches lies, opening the door for attackers to move laterally within the network. In hybrid infrastructures, where data and applications are distributed across on-premises servers, private, and public clouds, this risk is amplified.

What is Zero Trust and why is it relevant

Zero Trust is a cybersecurity strategy based on the principle of ‘never trust, always verify.’ Unlike traditional models that assume users and devices within the network perimeter are trusted, Zero Trust requires verification of every access request, regardless of its origin – external or internal. This model becomes critical in hybrid infrastructures where clear boundaries are blurred, and workloads and data migrate across various environments.

Key principles of Zero Trust

  • Explicit verification: All requests for resource access must be explicitly authenticated and authorized based on all available data, including user identity, location, device status, data sensitivity, and other attributes.
  • Principle of least privilege: Each user, device, or application is granted the minimum necessary level of access to resources to perform its functions. Access is granted only upon request and for a limited time.
  • Assume breach: It should always be assumed that any system component may be compromised. This requires continuous monitoring, network segmentation, and micro-segmentation to limit potential damage in the event of a successful attack.

Zero Trust in the context of hybrid infrastructures

Hybrid infrastructures, combining on-premises data centers with cloud services (public, private, multi-cloud), create a complex security environment. Traditional perimeter firewalls lose effectiveness as the ‘perimeter’ becomes virtual and dynamic. A Zero Trust architecture helps address these challenges through:

  • Unified access policy: Applying consistent access rules to resources, regardless of their location (on-premise or in the cloud).
  • Micro-segmentation: Dividing the network into small, isolated segments to limit lateral movement by attackers.
  • Continuous monitoring and analysis: Constantly collecting and analyzing data on user, device, and application behavior to detect anomalies and potential threats.
Zero Trust Component Description Benefits for Hybrid Infrastructure
Identity and Access Management (IAM) Centralized authentication and authorization for all resources. Unified access control to on-premises and cloud applications.
Network Micro-segmentation Isolation of workloads and applications at the network level. Limiting threat propagation between different environments.
Continuous Monitoring Real-time tracking of user and system activity. Early detection of anomalies and unauthorized access attempts.
Data Protection Encryption of data at rest and in transit, DLP solutions. Ensuring data confidentiality regardless of its location.
Expert comment
Anton Marrero
Anton Marrero Co-founder of Softline, Member of the Supervisory Board, Intecracy Group

In the context of hybrid infrastructures, implementing Zero Trust demands not only technological solutions but also a profound transformation of access and identity management processes. In practice, we find that success hinges on clearly defining critical assets and segmenting the network, enabling the gradual adoption of continuous verification policies.

Member company solutions and technologies

Intecracy Group members actively develop and implement solutions aligned with Zero Trust principles to protect complex enterprise infrastructures.

  • DooxSwitch specializes in cybersecurity, offering comprehensive solutions that include the implementation of Zero Trust architectures. Their experts assist organizations in developing security strategies compliant with ISO 27001 and NIS2 requirements, integrating principles of continuous verification and least privilege into existing and new systems. DooxSwitch develops network segmentation solutions that enable the isolation of critical infrastructure components and limit the capabilities of lateral movement by attackers.
  • SL Global Service provides managed IT operations and support services, including security monitoring and incident management, which are integral to Zero Trust. Their teams ensure continuous oversight of access policy compliance and rapid response to any deviations, enabling a high level of security in dynamic hybrid environments.
  • The UnityBase platform, developed by InBase, serves as the foundation for many of the alliance members’ corporate applications. It supports flexible management of roles and access rights, enabling the implementation of the principle of least privilege at the application level. UnityBase’s authentication and authorization modules can be integrated with modern IAM systems, strengthening access control to data and functionality.
  • Data Management IG focuses on Data Governance and MDM, ensuring the integration and management of data from various sources. In the context of Zero Trust, this allows for precise classification of data by sensitivity level and the application of appropriate access policies, ensuring that only authorized entities can interact with confidential information.
  • Softengi develops AI solutions and platforms for Platform Engineering, which can be used to automate anomaly detection and potential threat identification within a Zero Trust architecture. The use of machine learning to analyze behavioral patterns allows for proactive identification of unauthorized actions.

Transitioning to a Zero Trust architecture is not just about installing new software; it’s a shift in security philosophy that requires a comprehensive approach and integration at all levels of the IT infrastructure. Companies should invest in staff training, review existing security policies, and gradually implement Zero Trust principles, starting with the most critical assets. This will enable effective protection of hybrid environments against the growing spectrum of cyber threats.