The GDPR defines special category data as:
- Personal data relating to racial or ethnic origin;
- Personal data relating to political opinions;
- Personal data relating to religious or philosophical beliefs;
- Personal data relating to trade union membership;
- Genetic data;
- Biometric data (where it is used for identification purposes);
- Data relating to health;
- Data about a person's sex life;
- Data about a person's sexual orientation.