Industrial Cybersecurity & OT Risk calculator

EDR Agent Coverage Calculator

Use this calculator to measure EDR or endpoint monitoring coverage where it is approved for OT use. It supports coverage tracking while respecting vendor support, performance, and validation constraints for industrial endpoints.

What this calculator does

  • Calculate endpoint detection and response coverage across eligible OT and manufacturing support endpoints.
  • Use it when tracking monitoring coverage for HMIs, engineering workstations, servers, and supported industrial PCs.
  • The result shows approved endpoint monitoring coverage and gap to target.

Formula used

  • EDR agent coverage = eligible OT endpoints with approved EDR ÷ total eligible OT endpoints × 100
  • EDR agent coverage gap to target = EDR agent coverage - target EDR coverage

Inputs explained

  • Eligible OT endpoints with approved EDR: Count HMIs, engineering workstations, servers, historians, jump hosts, or industrial PCs with approved and healthy agents.
  • Total eligible OT endpoints: Use the eligible endpoint population after excluding unsupported, vendor restricted, or safety constrained devices.
  • Target EDR coverage: Enter the approved coverage target from security policy, monitoring plan, audit scope, or risk treatment plan.

How to use the result

  • Use it to prioritize agent deployment, exclusions, compensating controls, and monitoring roadmap work.
  • It assumes endpoint agents are validated for OT use and does not require deployment on unsupported systems.

Common questions

  • What is the EDR agent coverage calculator for? It calculates EDR or endpoint monitoring coverage for eligible OT endpoints.
  • What information should I enter? Use approved agent count, eligible endpoint count, and target coverage.
  • What does the result tell me? The result helps track monitoring rollout and compensating control needs.
  • When is the result only an estimate? It is only an estimate when eligibility, agent health, vendor restrictions, or asset inventory changes.

Last reviewed 2026-05-12.