Industrial Cybersecurity & OT Risk calculator

Cyber Recovery Readiness Index Calculator

Use this calculator to score OT cyber recovery readiness. It helps compare sites, production areas, or system tiers based on the consequence of recovery failure, exposure to disruption, and weakness in backups, spares, procedures, and exercises.

What this calculator does

  • Rank OT cyber recovery readiness using recovery impact, recovery exposure, and readiness weakness.
  • Use it when evaluating backups, restore testing, spare hardware, playbooks, and recovery drills for OT systems.
  • The result gives a relative recovery readiness risk score.

Formula used

  • Cyber recovery readiness risk score = recovery impact score × recovery exposure score × recovery readiness weakness score
  • Use the same scoring scale across comparable sites or OT system tiers.

Inputs explained

  • Recovery impact score: Score the consequence if recovery fails or exceeds the recovery time objective, including production, safety adjacent, quality, and customer impact.
  • Recovery exposure score: Score exposure based on critical asset count, legacy systems, vendor dependence, backup age, and complexity of restart.
  • Recovery readiness weakness score: Score weakness in tested backups, spare hardware, playbooks, restore capacity, drills, and operations validation.

How to use the result

  • Use it to prioritize backup testing, spares, recovery playbooks, restore capacity, and cyber drill work.
  • It is a planning score and does not confirm that recovery objectives can be met without testing.

Common questions

  • What is the cyber recovery readiness index calculator for? It ranks readiness risk for recovering OT systems after a cyber incident or disruption.
  • What information should I enter? Use impact, exposure, and readiness weakness scores.
  • What does the result tell me? The result helps decide where backup, restore, spares, and drill investments are most urgent.
  • When is the result only an estimate? It is only an estimate when restore tests, backup age, spare inventory, or recovery procedures are not current.

Last reviewed 2026-05-12.