Data Breach Cost Calculator — IBM 2024 Benchmarks

The average cost of a data breach reached $4.88 million globally in 2024 according to the IBM Cost of a Data Breach Report 2024 — the most comprehensive annual benchmark study in cybersecurity risk management, covering 604 organisations across 17 industries and 16 countries. Real-world breaches illustrate just how significant these costs can be — the 2023 Capita data breach, which affected millions of UK pension fund members and local authority records, is estimated to have cost Capita over £25 million in direct costs alone, with ongoing regulatory scrutiny and compensation claims continuing beyond that. But the actual cost to your organisation depends on factors including the number of records compromised, your industry, the speed of detection and containment, and whether you have cyber insurance. This data breach cost calculator uses IBM 2024 industry benchmarks to model the likely financial impact across key cost categories — from notification and response costs to regulatory fines and reputational damage.