Please can we create a GDPR tag as this may be useful in the lead up to May 2018 where the regulations will come into affect: https://ico.org.uk/for-organisations/data-protection-reform/overview-of-the-gdpr/
This new regulation covers Personal Data for all individuals within the European Union (EU):
Personal data is any information relating to an individual, whether it relates to his or her private, professional or public life. It can be anything from a name, a photo, an email address, bank details, your posts on social networking websites, your medical information, or your computer's IP address. The EU Charter of Fundamental Rights says that everyone has the right to personal data protection in all aspects of life: at home, at work, whilst shopping, when receiving medical treatment, at a police station or on the Internet.
It will take effect on May 25th, 2018.