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Zero Trust Architecture: Never Trust, Always Verify

AUTHOR: Mert Sunar PUBLISHED: Dec 20, 2025 READING TIME: 7 MIN VIEWS: 1529

Zero Trust Architecture: Never Trust, Always Verify

The traditional castle-and-moat network security model assumes that anything inside the corporate intranet is inherently trustworthy. Once an adversary compromises a single endpoint, lateral movement is trivial.

# Pillars of Zero Trust

  • [1]Explicit Verification: Always authenticate and authorize based on all available data points (identity, location, device health, service context).

  • [2]Least-Privilege Access: Limit user and service access with Just-In-Time (JIT) and Just-Enough-Access (JEA).

  • [3]Assume Breach: Minimize blast radius by segmenting networks, encrypting all end-to-end sessions, and using analytics to gain visibility.
  • TAGS: #Zero Trust #Architecture #Network Security #IAM #mTLS
    MS
    Mert Sunar
    Cyber Security Specialist • DevSecOps • AI Security

    Researching resilient enterprise defense, adversarial testing, and autonomous AI system safety.