Zero Trust

Zero Trust is a security model that requires strict identity verification for every person and device, regardless of network location.

Zero Trust is a security framework based on "never trust, always verify." It assumes threats exist both inside and outside the network.

Core Zero Trust principles: - Verify Explicitly: Always authenticate based on all available data - Use Least Privilege Access: Limit access with Just-In-Time and Just-Enough-Access - Assume Breach: Minimize blast radius, segment access, verify encryption

Key components: - Identity: Strong authentication (MFA) and governance - Device: Device health verification - Network: Micro-segmentation and encryption - Application: Access based on behavior and context - Data: Classification and protection - Monitoring: Continuous visibility and analytics

Zero Trust is an architecture, not a single product. Implementation is a multi-year journey.

Why It Matters

The traditional perimeter-based security model is obsolete in an era of cloud computing, remote work, and sophisticated attacks. Zero trust eliminates the assumption that anything inside the network is trusted, requiring continuous verification of identity, device health, and behavior. US Executive Orders now mandate zero trust for federal agencies, and enterprise organizations increasingly expect zero trust capabilities from their vendors and partners.

Key Points

"Never trust, always verify" paradigm

Eliminates implicit trust based on network location

Requires strong identity verification (MFA everywhere)

Micro-segmentation limits lateral movement

Journey-based implementation, not a product

Applicable Compliance Frameworks

SOC 2 ISO 27001 NIST CSF

Related Terms

Multi-Factor Authentication (MFA)

MFA is a security mechanism requiring users to provide two or more verification factors to gain access, significantly reducing the risk of unauthorized access.

Access Control

Access control is a security mechanism that regulates who can view or use resources in a computing environment, ensuring only authorized users can access systems and data.

Encryption in Transit

Encryption in transit protects data as it moves between systems, networks, or devices, typically using TLS/SSL protocols to prevent interception.

Frequently Asked Questions

How do I start implementing Zero Trust?

Start with identity: MFA everywhere, least privilege, conditional access policies. Then expand to device health, network segmentation, and application access.