Zero Trust
Zero Trust is a security framework based on the principle of "never trust, always verify." It requires all users, whether inside or outside the organization's network, to be authenticated, authorized, and continuously validated before being granted access to applications and data.
Core Principles
- Verify Explicitly: Always authenticate and authorize based on all available data points (identity, location, device health, service/workload, data classification, anomalies)
- Use Least Privilege Access: Limit user access with just-in-time and just-enough-access (JIT/JEA), risk-based adaptive policies, and data protection
- Assume Breach: Minimize blast radius and segment access. Verify end-to-end encryption. Use analytics to get visibility, drive threat detection, and improve defenses
Key Components
- Identity Verification: Multi-factor authentication and conditional access policies
- Device Trust: Endpoint health assessment before granting access
- Microsegmentation: Granular network segmentation to contain breaches
- Continuous Monitoring: Real-time assessment of trust throughout a session
- Data Protection: Encryption and data loss prevention at every layer
Why Zero Trust Matters
Traditional perimeter-based security assumes everything inside the network is trusted. With cloud adoption, remote work, and sophisticated attacks, this model is no longer sufficient. Zero Trust addresses modern security challenges by eliminating implicit trust.
Implementation Considerations
- Start with high-value assets and critical data
- Implement identity-centric security controls
- Adopt software-defined perimeters
- Integrate threat intelligence for context-aware access decisions
