Zero-Trust Security

Level 1: Quick Reference

Core Principles

Zero-trust architecture operates on the principle: "Never trust, always verify." Unlike traditional perimeter-based security, zero-trust assumes breach and verifies every request regardless of origin.

Fundamental Tenets:

• No implicit trust based on network location
• Verify explicitly (authentication + authorization)
• Least privilege access (just-in-time, just-enough)
• Assume breach (limit blast radius, segment access)
• Inspect and log all traffic

Common Zero-Trust Patterns