Ransomware attack cost calculator
For a merchant, the ransom is the smallest line on the bill. What they copied costs more than what they locked. Estimate all of it, line item by line item.
How do I get started?
For a ballpark estimate, answer the first 3 questions — revenue, downtime, exfiltration — and we fill in the rest with default assumptions. To refine it, answer all 10. Use “Jump to…” to revisit an answer and compare scenarios.
Is this accurate?
This tool prices a scenario that happened, not a market average, so it lands higher than an insurer's calculator, which probability-weights across a whole book. The model is anchored on the 2025 retail/luxury incidents and shares its exfiltration engine with our data breach calculator. Every attack is different, your case may vary.
What is your annual online revenue?
- in unrealised revenue
- €82.9K
- trading days lost
- 6.1
- per additional day of downtime
- €12,979
The outputs of this calculator are illustrative and intended for educational purposes only. They are not an audit, legal advice, or a prediction of actual costs, and do not bind Starship. Unrealised revenue is shown separately and is not added to the total: only the lost margin on it is.
Close the way in before it gets used.
The calculator estimates what an outage would cost you. Starship measures what could cause one: every app, theme and integration on your store, and your real supply-chain risk.