Zero Trust
A security model that never implicitly trusts a network, user, or device.
Zero Trust replaces perimeter-based trust with continuous verification. Every access request is authenticated, authorized, and encrypted based on identity, device posture, and context — regardless of network location.
NIST SP 800-207 is the reference architecture. Implementation typically starts with strong identity, MFA, device posture, and least-privilege access.
Think about a specific access decision
Zero trust removes implicit trust based only on network location. For each request, determine the identity, requested resource, permission, and relevant context. A person on the office network should not automatically receive broad access, and a remote worker should not automatically be denied appropriately authorized access.
A practical starting point
Inventory high-value resources and their users. Strengthen authentication, remove unnecessary privileges, check device requirements, and reduce overly broad connections. Start with a defined workflow such as access to customer files rather than purchasing a product and declaring the whole organization zero trust.
Architecture, not a compliance badge
Zero trust is not a single product or a promise that incidents cannot occur. Implementation depends on policy enforcement, reliable identity information, and operational monitoring. Record where policies apply, how exceptions are approved, and which legacy systems remain outside the approach so the label does not hide unresolved exposure.
Related terms
See how Scarlet Risk covers Zero Trust.
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