# Zero Trust Operations (Continuous Verification) One-sentence definition: Operate environments assuming breach; continuously verify identity, device, and context before every access. ## Key Facts - Enforce least privilege with policy engines; telemetry-driven decisions. - Continual posture checks (device compliance, risk, location); session re-evaluation. - Short-lived credentials; segment apps and data; monitor east–west. - Measure policy hit rates, denials, and risk-based step-ups. - **Verify:** check official (ISC)² CBK and current exam outline. ## Exam Relevance - Choose continuous verification + segmentation over perimeter-only. **Mnemonic:** “**Never trust, always test**.” ## Mini Scenario Q: Token theft leads to API misuse—ZT response? A: PoP/mTLS, session revocation, conditional access, and microsegmentation. ## Revision Checklist - Two continuous checks. - Short-lived credential reason. - Metric examples. ## Related [[Conditional Access Policies (Risk Device Location)]] · [[Network Segmentation and NAC]] · [[Cloud IAM Role Assumption and Temporary Credentials]] · [[Identity Threat Detection and Response (ITDR)]] · [[Domain 7 - Index]]