Zero trust

Term
Zero trust
Exam
CISA & CISM
Definition

An approach in which no user or device is trusted by default based on network location; every request is verified.

Explained

Zero trust removes implicit trust based on network location. Each access request is verified using identity, device health and context, and access is granted to specific applications rather than whole networks.

In practice

Every request to an internal app is authenticated and checked for device health, even from the office network.

Often confused with
Perimeter security
Exam angle

Defined in NIST SP 800-207.

Related

Least privilege ยท Multi-factor authentication (MFA)

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