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What is Zero Trust?

A security model that requires strict identity verification for every user and device, regardless of their network location.

Zero Trust follows the principle "never trust, always verify." Unlike traditional perimeter-based security, Zero Trust assumes threats exist both inside and outside the network. Every access request is fully authenticated, authorized, and encrypted.

Key principles include least-privilege access, micro-segmentation, continuous verification, and assuming breach. Implementation involves identity management, network segmentation, endpoint security, and comprehensive monitoring.

Related Terms

SIEM (Security Information and Event Management)
A platform that collects, correlates, and analyzes security events from across an organization to detect threats and incidents.
Data Loss Prevention (DLP)
A strategy and set of tools that detect and prevent unauthorized transmission of sensitive data outside an organization.
Certificate Pinning
A security technique that associates a host with its expected TLS certificate or public key, preventing man-in-the-middle attacks with fraudulent certificates.
Input Validation
The process of verifying that user-supplied data meets expected formats, types, and ranges before processing it.
Hashing
A one-way function that converts input data into a fixed-size string of characters, used for data integrity and password storage.
OAuth 2.0
An authorization framework that allows third-party applications to access user resources without sharing passwords.
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