StudyToCert

All certifications / SecurityX / Lessons

CompTIA SecurityX CAS-005 · Domain 2: Security architecture

Zero trust architecture: policy decision and enforcement points, continuous verification and least privilege

▶ Watch the overview video

Last reviewed September 25, 2026 · Leer en español

Zero trust is a security model that removes implicit trust based on network location. Being inside the corporate network no longer means a request is trusted; every access request is evaluated on identity, device and context, and access is granted with the least privilege needed, for as short a time as practical. NIST SP 800-207 describes the reference architecture.

Free account

Keep reading for free

Create a free StudyToCert account to read the rest of this lesson: 4 more sections, 5 key terms, a real-world example, an exam tip and self-check questions. Every lesson, lab and practice test is free with an account.

Sign up free Log in

Study SecurityX for free
A week-by-week plan with every lesson, quizzes, checkpoint tests, a practice exam and hands-on labs.
Open the SecurityX study plan