Zero Trust
Never trust, always verify security architecture
Zero Trust is a security framework that requires strict identity verification for every person and device attempting to access resources, regardless of their location relative to the network perimeter.
Core Principles
- Verify Explicitly - Always authenticate and authorize based on all available data points
- Least Privilege Access - Limit user access with just-in-time and just-enough-access (JIT/JEA)
- Assume Breach - Minimize blast radius and segment access, verify end-to-end encryption
- Continuous Validation - Never trust implicitly; continuously validate security posture
Key Components
- Identity - Strong authentication and identity governance
- Devices - Device health and compliance verification
- Networks - Micro-segmentation and encrypted communications
- Applications - In-app permissions and shadow IT discovery
- Data - Classification, labeling, and encryption
- Infrastructure - Telemetry, configuration management, and just-in-time access
Implementation Approaches
- Software-Defined Perimeter (SDP)
- Micro-segmentation
- Identity-Aware Proxy
- Zero Trust Network Access (ZTNA)
- Continuous Adaptive Risk and Trust Assessment (CARTA)
