Report a data breach or a security incident

A data breach is a breach of security leading to the accidental or unlawful destruction, loss, alteration, unauthorised disclosure of, or access to, personal or sensitive data.

What is a data breach

Some examples of data breaches include:

  • Personal or sensitive personal data emailed, posted or faxed to an unintended recipient, such as a letter containing social care information
  • Loss of records which are read by an unauthorised person, for example a file lost containing personal or commercially sensitive information
  • Information not kept secure, for example correspondence left on a bus or train
  • Loss of a laptop or mobile phone which contains personal or sensitive information
  • Papers containing personal or sensitive information, which are due for destruction are not properly disposed of

How to report a data breach or a security incident

You can report a data breach or other security incident:

  • Online: submit our online form 
  • By phone: if the matter is urgent and out of office hours, phone on 020 8871 6000

We are not resourced to investigate fully suspected data breaches or security incidents out of normal office hours. However, wherever necessary and possible, steps will be taken to address the cause of the breach and seek to rectify it quickly.

Start report

You will need

To report a suspected personal or sensitive data breach, or other security incident, you will need to:

  • Please provide as much detail of the incident as possible
  • State if this an urgent matter (for example discovery of papers containing personal or sensitive information on the street)
  • Specify the location of the issue

What happens next

We have robust breach detection, investigation and internal reporting procedures in place.

Addressing the cause of the breach, and seeking to rectify it quickly, is a high priority.

If a breach is likely to result in a high risk of adversely affecting individuals’ rights and freedoms (for example through identity theft) we will inform those individuals as quickly as possible.