What is Zero Trust Architecture?
Zero Trust Architecture (ZTA) is a cybersecurity model based on the principle of “never trust, always verify.” Instead of granting implicit trust to users or devices inside the internal network, the model requires continuous authentication, authorization, and verification—regardless of user location or device
How does Zero Trust Architecture work?
Zero Trust is implemented through a combination of integrated security functions:
- Identity and Access Management (IAM): Multi-factor authentication (MFA) and role-based access control (RBAC).
- Microsegmentation: Dividing the network to prevent lateral movement during intrusions.
- Principle of Least Privilege (PoLP): Users and systems only receive access to what is absolutely necessary.
- Continuous monitoring: Ongoing surveillance of user behavior and system activity.
- Encryption: Protecting all data, both at rest and in transit.
Benefits of Zero Trust Architecture:
- Reduces the risk of data breaches and unauthorized access
- Protects against both external attacks and insider threats
- Enables secure remote access for distributed teams
- Helps organizations comply with standards such as NIS 2, GDPR, and ISO 27001
Use Cases for Zero Trust:
- Enterprise networks with high security requirements
- Critical infrastructure, including SCADA, OT, and IoT systems
- Hybrid environments and cloud services
- Government agencies and the defense sector