نماذج الثقة الصفرية تعيد تشكيل الدفاع السيبراني

## Introduction In an increasingly interconnected world, the traditional cybersecurity paradigm of perimeter defenses is no longer sufficient. Enter the Zero Trust Model, a revolutionary approach to cybersecurity that is reshaping how organizations secure their digital assets. This model, which operates on the principle of 'never trust, always verify', is becoming the cornerstone of modern cyber defense strategies. ## Understanding "Zero Trust Models Redefine Cyber Defense" Zero Trust is more than just a buzzword; it is a shift in how security architecture is planned and implemented. ### Key Concept 1: Principle of Least Privilege The Zero Trust Model enforces the principle of least privilege, ensuring that users have only the access necessary to perform their tasks. This minimizes potential damage from compromised credentials, as attackers cannot exploit broad access rights. ### Key Concept 2: Micro-Segmentation Micro-segmentation involves dividing a network into smaller, isolated segments, thereby limiting the spread of potential breaches. It creates internal barriers, making lateral movement by attackers considerably more challenging. ### Key Concept 3: Continuous Authentication In a Zero Trust environment, authentication is not a one-time event but an ongoing process. Continuous authentication ensures that users are re-evaluated regularly, mitigating risks of long-term access from stolen credentials. ## Core Features and Benefits - **Enhanced Security**: By eliminating implicit trust, Zero Trust significantly reduces the risk of insider threats and unauthorized access. - **Scalability**: The model is adaptable to different types of infrastructures, from on-premises to cloud environments. - **Visibility and Control**: Centralized policies and monitoring provide comprehensive oversight of who accesses what and when. ## Technical Deep Dive ### Architecture/Technology Zero Trust architecture consists of several components, including identity and access management, e...