The ICO exists to empower you through information.

The guidance on this page is suitable for large businesses in the public, private and third sectors. Small businesses should use the resources on our small business web hub.

Brief guidance

Who does the UK GDPR apply to?

A brief overview of who the UK GDPR applies to and some key definitions.

What is personal information?

The definition of personal information and how to know whether the information you are using is personal information.

Detailed guidance

What is personal information?

Detailed guidance about what personal information is, identifiers and related factors, directly identifying someone and the definition of "relates to".


Training videos: What is personal data?

Recordings of ICO staff training on what personal information is and some key data protection definitions, available for you to reuse.

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