Personal data means any information about an identified or identifiable person. For example, an individual’s home address, personal (home and mobile) phone numbers and email addresses, occupation, and so on can all be defined as personal data.

Some categories of personal data are recognised as being particularly sensitive (“sensitive personal data”). These include data revealing racial or ethnic origin, political opinions, religious or philosophical beliefs, genetic and biometric information, and data concerning a person’s sex life or sexual orientation.