الهندسة الصفرية: نقلة نوعية في الدفاع السيبراني

## Introduction In today's rapidly evolving digital landscape, security is paramount. Traditional security models that relied on perimeter-based defense mechanisms are no longer sufficient. Enter Zero-Trust Architecture (ZTA) — a revolutionary approach that fundamentally redefines digital defense by assuming that threats can originate both outside and inside the network. In this article, we delve into the principles of Zero-Trust, its architecture, benefits, and real-world applications. ## Understanding "Zero-Trust Architectures Redefine Digital Defense" Zero-Trust Architecture is based on the principle of "never trust, always verify," which means that presumption of trust within a network is eliminated. This approach requires strict identity verification for every person and device trying to access resources on a private network. ### Key Concept 1: No Implicit Trust Traditional network security often operates on the assumption that internal networks are trusted. However, Zero-Trust discards this idea, treating every connection as potentially hostile. ### Key Concept 2: Micro-Segmentation Micro-segmentation is the practice of breaking up security perimeters into small zones to maintain separate access for different parts of the network. This significantly reduces the scope of attacks. ### Key Concept 3: Least Privilege Access Users and systems are granted the minimum levels of access—or permissions—needed to perform their job functions. This limits potential damage if credentials are compromised. ## Core Features and Benefits - **Enhanced Security**: Eliminates the weaknesses associated with perimeter-based defenses by assuming compromise and verifying each request. - **Reduced Attack Surface**: By enforcing micro-segmentation, the possibility of lateral movement within the network is minimized. - **Improved Compliance**: Facilitates the implementation of strict access controls and detailed auditing, which are essential for compliance with regulations like GDPR and ...