What is a data breach notification letter?
It is a formal letter informing people, or a regulator, that their personal data may have been exposed in a security incident, along with what the company is doing about it.
Data, Privacy & Compliance
Data Breach Notification Letter
Generate a data breach notification letter for customers, employees or the ICO, aligned with the 72-hour notification requirement under UK GDPR.
- Create a customer data breach notification letter
Create a data breach notification letter from [Company Name] to affected customers, explaining what personal data was involved in the breach and what steps are being taken, consistent with UK GDPR.
- Create a regulator data breach notification letter
Create a data breach notification letter from [Company Name] to the Information Commissioner's Office (ICO), reporting a breach affecting [Number] individuals within 72 hours and the company's response.
- Create an employee data breach notification letter
Create a data breach notification letter from [Company Name] to affected employees, explaining what personal data was exposed and what support is being offered.
Data Breach Notification Letter Generator (UK)
A data breach notification letter formally informs people, or a regulator, that their personal data may have been exposed in a security incident, along with what the company is doing about it. This free UK generator produces letters to customers, to the Information Commissioner's Office (ICO), and to employees, reflecting the notification obligations under UK GDPR and the Data (Use and Access) Act 2025, which require notifying the ICO within 72 hours of becoming aware of a reportable breach, and notifying affected individuals without undue delay where there is a high risk to their rights and freedoms. It is designed for UK businesses responding to a suspected or confirmed data breach who need to notify quickly and within strict deadlines. The generator lets you describe what happened, what data was involved, remediation steps, and support offered to those affected. Use it to help meet your UK GDPR notification obligations while communicating clearly with affected people.
Frequently asked questions
Who needs to be notified after a data breach in the UK?
Under UK GDPR, a business must notify the ICO of a reportable breach, and must notify affected individuals directly where the breach is likely to result in a high risk to their rights and freedoms.
What should a customer notification letter include?
It should explain what happened, what personal data was involved, what the company is doing in response, and what steps the customer can take to protect themselves.
How is an ICO notification different from a customer letter?
An ICO notification is more detailed and technical, covering the number of people affected, the cause of the breach, and remediation steps taken.
How quickly must a breach be reported in the UK?
A reportable breach must be notified to the ICO within 72 hours of the business becoming aware of it, under UK GDPR.
Should employees be notified the same way as customers?
Employee data breaches are often treated similarly to customer breaches, but the letter may also need to reference internal HR support and reporting channels.