What are special categories of personal data?

Jul 2, 2019Data Protection & Privacy

By default a data controller is prohibited from processing special category data – Article 9 (1) of the GDPR says that the processing of special category data “shall be prohibited”.

Personal Data

Personal Data

By default a data controller is prohibited from processing special category data – Article 9 (1) of the GDPR says that the processing of special category data “shall be prohibited”.

Paragraph 2 of Article 9 however states that processing of special category data is permitted where certain conditions apply. These conditions are listed as follows:

the data subject has given explicit consent to the processing of those personal data for one or more specified purposes, except where Union or Member State law provide that the prohibition referred to in paragraph 1 may not be lifted by the data subject;

processing is necessary for the purposes of carrying out the obligations and exercising specific rights of the controller or of the data subject in the field of employment and social security and social protection law in so far as it is authorised by Union or Member State law or a collective agreement pursuant to Member State law providing for appropriate safeguards for the fundamental rights and the interests of the data subject;

processing is necessary to protect the vital interests of the data subject or of another natural person where the data subject is physically or legally incapable of giving consent;

processing is carried out in the course of its legitimate activities with appropriate safeguards by a foundation, association or any other not-for-profit body with a political, philosophical, religious or trade union aim and on condition that the processing relates solely to the members or to former members of the body or to persons who have regular contact with it in connection with its purposes and that the personal data are not disclosed outside that body without the consent of the data subjects;

processing relates to personal data which are manifestly made public by the data subject;

processing is necessary for the establishment, exercise or defence of legal claims or whenever courts are acting in their judicial capacity;

processing is necessary for reasons of substantial public interest, on the basis of Union or Member State law which shall be proportionate to the aim pursued, respect the essence of the right to data protection and provide for suitable and specific measures to safeguard the fundamental rights and the interests of the data subject;

processing is necessary for the purposes of preventive or occupational medicine, for the assessment of the working capacity of the employee, medical diagnosis, the provision of health or social care or treatment or the management of health or social care systems and services on the basis of Union or Member State law or pursuant to contract with a health professional and subject to the conditions and safeguards referred to in paragraph 3;

processing is necessary for reasons of public interest in the area of public health, such as protecting against serious cross-border threats to health or ensuring high standards of quality and safety of health care and of medicinal products or medical devices, on the basis of Union or Member State law which provides for suitable and specific measures to safeguard the rights and freedoms of the data subject, in particular professional secrecy;

processing is necessary for archiving purposes in the public interest, scientific or historical research purposes or statistical purposes in accordance with Article 89(1) based on Union or Member State law which shall be proportionate to the aim pursued, respect the essence of the right to data protection and provide for suitable and specific measures to safeguard the fundamental rights and the interests of the data subject.

The GDPR permits member States to formulate additional conditions and limitations to the processing of certain of the special categories of data. Paragraph 4 of Article 9 states the following:

Member States may maintain or introduce further conditions, including limitations, with regard to the processing of genetic data, biometric data or data concerning health.

The UK in the Data Protection Act 2018 adds additional specific conditions and safeguards.

What is the difference between personal data and special category data?

Along with having to satisfy a specific condition under Article 9, Controllers must also have at least one lawful basis for processing data under Article 6 of the GDPR. The lawful basis for processing under Article 6 does not have to match the special category condition under Article 9, however often there will be an obvious overlap between the two e.g. were explicit consent has been given.

A data controller must determine the condition for processing under Article 9 before processing special category data, and also record the reasons for the decision.

The essential reason why special category data is given such heighten protection is due to its sensitive nature. Special category data is defined under Article 9 as being data related to:

  • racial or ethnic origin
  • political opinions
  • religious or philosophical beliefs
  • trade union membership
  • the processing of genetic data
  • biometric data for the purpose of uniquely identifying a natural person
  • data concerning health
  • data concerning a natural person’s sex life or sexual orientation

Special category data does not cover criminal offences and conviction records, which is covered instead under Article 10 GDPR.

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