Set by the law · GDPR recital 26
Anonymous information
In plain English
Information that does not relate to an identifiable person, or data made anonymous so that no one can identify the person by any means reasonably likely to be used. The GDPR does not apply to it.
The official text
The principles of data protection should therefore not apply to anonymous information, namely information which does not relate to an identified or identifiable natural person or to personal data rendered anonymous in such a manner that the data subject is not or no longer identifiable.
To determine whether a natural person is identifiable, account should be taken of all the means reasonably likely to be used, such as singling out, either by the controller or by another person to identify the natural person directly or indirectly.
anonymisation results from processing personal data in order to irreversibly prevent identification
Related
The official text is quoted word for word from the English version of the source named under it; only the version published in the Official Journal of the EU is legally binding. The plain-English line is Fino’s own summary, not legal advice.