# Endpoint Application Allowlisting Operations One-sentence definition: Permit only known-good executables/scripts to run; block the rest. ## Key Facts - Modes: publisher/file hash/path rules; staged monitor → enforce. - Handle updates (hash changes) via signing and controlled distribution. - Pair with EDR and least privilege; exception workflows time-bound. - **Verify:** check official (ISC)² CBK and current exam outline. ## Exam Relevance - Choose allowlisting to stop unknown malware and LOLBins. **Mnemonic:** “**Allow** little, **block** most.” ## Mini Scenario Q: Update breaks due to new binary hash—ops step? A: Pre-approve signed binaries; roll out in pilot → fleet. ## Revision Checklist - Two rule types. - Rollout phases. - Exception handling. ## Related [[Endpoint Hardening and Baselines (Servers and Workstations)]] · [[Endpoint EDR Detection Validation]] · [[Patch and Vulnerability Remediation Operations]] · [[Playbooks and SOAR Automation]] · [[Domain 7 - Index]]