Kardelen Pınar (Writer)
21 October 2024
What Is Zero-Trust Architecture (ZTA)?
• It is a security approach that assumes nothing is trusted by default.
• It was developed to address modern information security threats.
• Its goal is to ensure continuous verification and the principle of least privilege against both internal and external threats.
Principles of Zero-Trust Architecture
Nothing Is Trusted:Security addresses not only external threats but also internal ones. Even within the internal network, all resources and users are monitored.
Continuous Authentication:Users and devices go through an authentication process for every access request. A single authentication is not sufficient.
Least Privilege:Users and devices are granted access only to the resources they need. Unnecessary permissions are not given.
Micro-Segmentation:The network is divided into small, manageable segments. Separate authentication is required to move between each segment.
Advantages of Zero-Trust Architecture
Enhanced Security:It provides better protection against internal and external threats because every access request is evaluated independently.
Data Protection:It ensures that sensitive data is accessed only by authorized users and reduces the risk of data breaches.
Flexibility:It is compatible with modern work environments such as cloud services, mobile devices, and remote access, since security policies apply to all types of access.
Reduced Attack Surface:When a security breach occurs, its impact is usually limited to specific segments or resources, which minimizes the affected area.