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Zero Trust (ZT)
Definition 1
Zero Trust (ZT) also Zero-Trust, provides a collection of concepts and ideas designed to minimize uncertainty in enforcing accurate, least privilege per-request access decisions in information systems and services in the face of a network viewed as compromised.
Definition 2
Zero Trust (ZT) is a data-centric Cybersecurity strategy for enterprise computing that assumes no end-user, Network Device, Mobile Device, Peripheral Device, or Storage Device, Web Service, or network connection can be trusted – even when an access request originates from within the organization’s own network perimeter.
The Zero Trust Security Model has evolved to take into account distributed computing and an ever-expanding attack surface. Unlike a Single Sign-On (SSO) strategy that allows users to log in once and access multiple network services without re-entering authentication factors, Zero Trust requires authentication factors to be verified – and re-verified – each time a network resource is requested.
Because untrusted threat actors exist both internally and external to a network, Zero Trust supports the following principles:
- Never Trust
- Always Verify
- Enforce Least Privilege
An important goal of the Zero Trust Model is to prevent malicious actors from using a compromised account to move laterally across a target network.
Source: https://www.techopedia.com/definition/34572/zero-trust-zt
