Data protection and security

Anonymisation

Changing personal data so that no one can be identified from it, even by combining it with other information.

  • Data protection and security

Definition

Changing personal data so that no one can be identified from it, even by combining it with other information. Truly anonymous data is outside data protection law. Removing names alone is rarely enough.

Example

Alta Sky Centre's total admissions per month do not identify anyone. A list of visits with dates, postcodes and ages might still identify people.

Alta Sky Centre AS is a fictional company created for Insyt.

For your role

Choose your role to see what this term means in your work.

Why it matters

Properly anonymised data falls outside data protection law, which reduces risk and opens up safe reuse.

Where it is used

Research, testing, reporting and data sharing.