--- title: "Eight key concepts" slug: "8-key-concepts-v6-6" description: "AppGate ZTNA is based eight key concepts of security principles and operating concepts that follow the software-defined perimeter approach. " updated: 2026-02-23T16:32:46Z published: 2026-02-23T16:32:46Z canonical: "support.appgate.com/8-key-concepts-v6-6" --- > ## Documentation Index > Fetch the complete documentation index at: https://support.appgate.com/llms.txt > Use this file to discover all available pages before exploring further. # Eight key concepts ## The building blocks that underpin AppGate ZTNA AppGate ZTNA is based on number of key security principles and operating concepts which follow the software-defined perimeter approach defined by the Cloud Security Alliance (CSA). The result is a powerful but flexible solution that can be configured to meet your security and compliance requirements regardless of network topology. Advanced [automation and orchestration](/v1/docs/automation-and-orchestration-v6-6) tools can be deployed to further streamline administration. The following sections describe the eight key concepts underpinning the system design. By understanding the way the system operates, you will be better equipped to design and optimize the configuration of your AppGate ZTNA system. The eight key concepts are: - [Zero Trust based](/v1/docs/zero-trust-based-v6-6) - [Robust resilient architecture](/v1/docs/robust-resilient-architecture-v6-6) - [Rapid implementation](/v1/docs/rapid-implementation-v6-6) - [Individual Policy controls](/v1/docs/individual-policy-controls-v6-6) - [Dynamic least privilege access mode](/v1/docs/dynamic-least-privilege-model-v6-6)l - [Easy to deploy and use](/v1/docs/easy-to-deploy-and-use-v6-6) - [Decentralized access](/v1/docs/decentralized-access-v6-6) - [Performant at scale](/v1/docs/performant-at-scale-v6-6)