Calculate the cost of a breach with our free calculator

Estimate how your organisaton may be affected by a cyber incident

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Update note 1 August 2026:

We’re updating this calculator

Northdoor is updating our cost calculator following the release of the new IBM Cost of a Data Breach Report 2026. While that work is under way, this link is redirecting to our 2026 UK Cost of a Data Breach report.

In the meantime, the Northdoor team would be happy to talk you through the cost of a data breach for your organisation directly. Get in touch here.

Use the free data breach cost calculator to understand the financial impact of cyber attacks

Use the free data breach cost calculator to understand the financial impact of cyber attacks

Data breaches are more than just a security issue, they’re a financial disaster waiting to happen. If the worst-case scenario occurs, does your organisation know what the costs of a data breach could add up to? Many businesses are reluctant to think about this, leaving them unprepared for the financial impact of a cyber attack.

According to the IBM Cost of a Data Breach Report 2026: UK findings explained, the average cost of a data breach in the UK reached £3.13 million in 2026, down slightly from £3.29 million in 2025. At the same time, Cybersecurity Ventures projects that global cybercrime costs will climb to $12.2 trillion annually by 2031, as attacks grow more frequent and more costly to contain.

The Data Breach Cost Calculator helps you estimate the financial impact of a cyber incident on your business. Whether you’re a small business or a large enterprise, understanding these costs is the first step toward better cyber security preparedness. Use our calculator to gain actionable insights and make informed decisions about your cybersecurity strategy.

The data breach cost calculator helps you estimate the potential financial impact of a breach on your organisation. Share on X

How it works:

Step 1: Access the Calculator

Click the link to access the interactive Data Breach Cost Calculator.

Step 2: Enter your business details

Provide key information about your organisation, including:

  • Industry
  • Country
  • Organisation Size
  • Annual Revenue
  • Breach Scenario and Root Cause.

Step 3: Get your breach cost estimate instantly

The calculator uses real-world data from insurers and Arctic Wolf’s proprietary research to provide a detailed breakdown of potential costs, including:

  • Direct costs: Ransom payments, lost business, and regulatory fines.
  • Hidden costs: Forensics, PR, legal fees, and operational downtime.

Try the free calculator to estimate breach costs

Why use the data breach cost calculator?

  • Accurate estimates: Based on the latest UK data breach statistics.
  • Customisable: tailored to your business size and industry.
  • Actionable insights: Learn how to reduce costs with proactive cyber security measures.
  • Educational value: Learn about the hidden costs of breaches and how to reduce them.

Our free calculator is one of the many ways Northdoor can help your organisation strengthen its security posture and end cyber risk.

Don’t wait until it’s too late, calculate your risk today

Request a demo or contact sales on: 0207 448 8500

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