Personal data is everything that can lead to identify a person.
Name and surname
Gender and nationality
Any data regarding personal interest and orientation
An email address such as firstname.lastname@example.org
Identification card numbere
Internet Protocol (IP) address
Advertising identifier of your phone (i.e. a unique ID for each mobile device ad networks use to serve targeted ads)
Note: Also photos count as personal data, so you cannot simply share pictures without people’s consent.
Please note that there’s a special category of personal data: sensitive personal data. For example, this includes medical information, data about a person’s racial or ethnic origin, political opinions, religious or philosophical beliefs, trade union membership or genetic and biometric data (e.g. fingerprint). Financial data isn’t considered sensitive data. If a company processes sensitive data, additional security and technical security measures must be taken.