Recent Breaches
Breaches
2026PowerSchool62.4M stolen62.4M records stolen2026DISA Global Solutions3.3M stolen3.3M records stolen2026Globe Life850K stolen850K records stolen2026HertzUndisclosed stolenUndisclosed records stolen2026NHS ScotlandUndisclosed stolenUndisclosed records stolen2025Marks & Spencer9.4M stolen9.4M records stolen2025PayPal35K stolen35K records stolen2025Co-operative GroupUndisclosed stolenUndisclosed records stolen2025Jaguar Land RoverUndisclosed stolenUndisclosed records stolen2024National Public Data2.9B stolen2.9B records stolen2026HertzUndisclosed stolenUndisclosed records stolen2026NHS ScotlandUndisclosed stolenUndisclosed records stolen2025Marks & Spencer9.4M stolen9.4M records stolen2025PayPal35K stolen35K records stolen2025Co-operative GroupUndisclosed stolenUndisclosed records stolen2025Jaguar Land RoverUndisclosed stolenUndisclosed records stolen2024National Public Data2.9B stolen2.9B records stolen2026PowerSchool62.4M stolen62.4M records stolen2026DISA Global Solutions3.3M stolen3.3M records stolen2026Globe Life850K stolen850K records stolen
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Home/Research/Breach Cost Calculator

CNI Breach Cost Calculator

Estimate the financial impact of a successful cyber incident on a UK organisation. Combines sector-adjusted downtime cost, record-level data exposure, workforce productivity loss and a baseline regulatory provision.

Inputs

1h2 weeks

Estimated impact

£20,044,000
Downtime cost£672,000
Data exposure£18,350,000
Workforce loss£288,000
Regulatory provision£734,000

Estimates are illustrative, derived from IBM Cost of a Data Breach 2024 and ICO enforcement data normalised to a UK-mid baseline. Actual costs vary materially.

How to cite

Firevault CNI Breach Cost Calculator, fire-vault.com/research/cni-breach-cost-calculator. Free to embed and quote with attribution.