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Cyber Insurance Coverage Needs Estimator

Estimate a cyber insurance limit target by adding several loss components that can arise from a serious cyber event, subtracting reserves you are willing to use, and optionally applying a planning buffer. The calculator creates a transparent coverage-needs estimate rather than relying on a generic revenue multiple.

Use it to organize a renewal discussion around incident response, interruption, third-party liability, and recovery exposures. The result is not a substitute for a broker, insurer, legal review, or scenario analysis, and actual policy limits may be shared across coverages or reduced by sublimits and defense costs.

Cyber exposure inputs

USD
USD
USD
USD
USD
%
Result
—
Calculated estimate
Gross modeled exposure—
Reserve offset—
Base coverage need—
Planning buffer—

1. Estimate response and restoration costs
Include modeled forensic, notification, restoration, and other first-party response costs you want the insurance program to address.

2. Add interruption exposure
Enter the business-income or extra-expense amount you could lose during a representative severe disruption.

3. Add liability and recovery exposures
Include modeled third-party liability, defense, extortion, fraud, or recovery amounts that are relevant to your scenario.

4. Subtract available reserves
Enter cash or risk reserves you are genuinely willing to use for this event.

5. Apply a planning buffer
Use a buffer only if you want additional capacity above the net modeled exposure.

6. Review the estimated need
Compare the result with quoted limits, sublimits, retentions, and aggregation terms.

Gross exposure = Response + Interruption + Liability + Extortion/Recovery Base coverage need = max(Gross exposure − Available reserves, 0) Estimated coverage need = Base coverage need × (1 + Buffer %)

This scenario model assumes the entered components can occur within the same severe event. If some components are mutually exclusive or capped by a specific sublimit, adjust the inputs accordingly.

What the result means

The main result is a scenario-based net coverage target after the reserve offset and planning buffer.

This is a planning estimate, not a statement of policy adequacy or coverage.

Given: Response/restoration $65,000, interruption $120,000, liability/defense $40,000, extortion/recovery $55,000, reserves $30,000, and a 15% buffer.

Calculation:
Gross exposure = $280,000
Base need = $280,000 − $30,000 = $250,000
Estimated coverage need = $250,000 × 1.15 = $287,500.00

Result: The modeled coverage need is $287,500.00. A quoted limit should still be checked against sublimits, aggregate terms, and the specific loss components the policy actually covers.

Why does the calculator use loss components instead of revenue alone?

Revenue can be a useful context metric, but it does not directly describe incident response cost, interruption duration, third-party liability, or recovery expenses. A component model makes the assumptions visible.

Should I include the worst imaginable cyber event?

Use a scenario that matches the decision you are making. Many users model a severe but plausible event, then separately test a more extreme case.

What counts as available reserves?

Only include funds you would actually be willing and able to deploy after an incident. Do not subtract routine operating cash if doing so would create a separate liquidity problem.

Does the estimate include every cyber policy coverage?

No. Cyber policies can include many coverage sections and sublimits. Add or adjust the modeled amounts so they reflect the exposures you want to finance.

Can the result tell me which insurer or policy to buy?

No. Limit size is only one factor; policy wording, exclusions, incident response services, sublimits, retention structure, and insurer claims handling also matter.