What is Zero Trust Security?
Zero Trust is a security framework based on the principle "never trust, always verify." Unlike traditional perimeter security (castle-and-moat model), Zero Trust assumes that threats exist both outside and inside the network.
Zero Trust is a security framework based on the principle "never trust, always verify." Unlike traditional perimeter security (castle-and-moat model), Zero Trust assumes that threats exist both outside and inside the network.
Zero Trust principles: verify every user and device regardless of location, enforce least-privilege access, assume breach (design systems that limit blast radius), and validate continuously (not just at login).
Implementation components: identity verification (SSO, MFA), micro-segmentation (isolate network segments), device health checks, encryption in transit and at rest, and continuous monitoring.
Zero Trust has become the default security architecture because: remote work dissolved the network perimeter, cloud services exist outside corporate networks, and insider threats account for 25-30% of security incidents.
Why It Matters
Zero Trust is both a security best practice and increasingly a compliance requirement. NIST, the Department of Defense, and many industry regulations now mandate Zero Trust architecture elements.
Frequently Asked Questions
What is Zero Trust?
A security model that verifies every user and device for every access request, regardless of location. No implicit trust — even inside the corporate network.
How do you implement Zero Trust?
Start with: SSO + MFA for all users, least-privilege access policies, network micro-segmentation, device health validation, and continuous monitoring.
Related Terms
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