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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

Security Hardening
The process of reducing a system's attack surface by disabling unnecessary services, applying patches, and configuring security controls.
Man-in-the-Middle Attack
An attack where the attacker secretly intercepts and potentially alters communication between two parties who believe they are communicating directly.
Data Loss Prevention (DLP)
A strategy and set of tools that detect and prevent unauthorized transmission of sensitive data outside an organization.
Penetration Testing
An authorized simulated cyberattack on a system to evaluate its security defenses and identify vulnerabilities.
Session Hijacking
An attack where an adversary takes over a legitimate user session by stealing or predicting the session identifier.
Two-Factor Authentication (2FA)
A security method requiring two different forms of identification before granting access to an account.
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