With regard to the processing of personal data, the data subject must be provided with the information specified in the GDPR in a concise, comprehensible and easily accessible form. This is often done in the form of privacy statements, which are published, for example, on the organisation's website.

Where personal data have not been collected from the data subject himself, the descriptions shall state, in addition to the basic content:

• where the data were obtained
• which categories of personal data are covered

Understanding data sources is important for understanding data flow. In addition, data protection communications shall be able to communicate the sources of personal data in cases where the data have not been collected directly from the data subject himself.