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Business Email Compromise Downtime Cost Estimator

This estimator measures the annual operational cost of disruption caused by business email compromise incidents. It combines internal staff time, payment-flow interruption, and external response expense, making it useful when the business impact extends beyond the fraudulent transfer itself.

Examples include pausing vendor payments, validating bank details, reviewing mailboxes, coordinating with financial institutions, and restoring approval workflows. The result should not be added to a separate loss estimate unless overlapping labor and response costs have been removed. Keeping operational disruption distinct can reveal the value of faster verification and recovery processes.

Enter your assumptions

incidents
hours
people
USD
USD
USD
Result
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Annual downtime cost
Internal labor disruption—
Payment-flow impact—
External response cost—

1. Enter incident frequency

Use the annual number of BEC events that cause material workflow disruption.

2. Estimate disruption duration

Enter the average elapsed hours before affected payment or email processes return to normal.

3. Add affected staff

Count finance, security, legal, management, support, and other staff whose normal work is displaced.

4. Enter loaded labor cost

Use salary, benefits, and overhead on an hourly basis.

5. Add payment-flow impact

Estimate contribution loss, late fees, supplier disruption, or another hourly impact from delayed payments.

6. Add external response cost

Include forensic, legal, bank, consulting, or communication expense per incident.

Internal labor disruption = Incidents × Hours × Affected staff × Hourly labor cost Payment-flow impact = Incidents × Hours × Impact per hour External response cost = Incidents × Cost per incident Annual downtime cost = Internal labor + Payment-flow impact + External response

The model treats incident duration and affected staff as averages and does not include the fraudulent transfer itself.

What the result means

Use the result as a scenario-based planning estimate. Compare several plausible inputs rather than relying on one point value.

This calculator does not replace a formal risk assessment, incident analysis, legal advice, or financial advice.

Given: 3 incidents, 18 hours of disruption, 14 staff, $68 loaded hourly cost, $2,500 hourly payment impact, and $9,500 external cost per incident.

Calculation: Labor = 3 × 18 × 14 × $68 = $51,408. Payment impact = 3 × 18 × $2,500 = $135,000. External response = 3 × $9,500 = $28,500. Total = $214,908.

Result: Estimated annual BEC downtime cost is $214,908.

Does this include the stolen payment?

No. It estimates operational disruption. Use the BEC expected loss estimator for fraudulent transfer loss and avoid double counting response costs.

What is payment-flow impact?

It is the documented hourly business effect of delayed or suspended payment operations, such as late charges, lost contribution, or supplier disruption.

Should executive time be included?

Yes, when executives materially participate in response or approvals. Use their loaded hourly cost within the affected-staff average or model them separately.

How should partial disruption be handled?

Convert partial disruption into equivalent full-impact hours or reduce the affected staff and hourly impact values.

Can this support a recovery target?

Yes. Compare the current scenario with shorter disruption durations to estimate the financial value of faster recovery.