In short, yes. The legislation will apply to companies of all sizes. Individuals, organisations, and companies that are either ‘controllers’ or ‘processors’ of personal data will be covered by the GDPR. “If you are currently subject to the DPA, it is likely that you will also be subject to the GDPR,” the ICO says on its website.
Both personal data and sensitive personal data are covered by GDPR. Personal data, a complex category of information, broadly means a piece of information that can be used to identify a person. This can be a name, address, IP address… you name it. Sensitive personal data encompasses genetic data, information about religious and political views, sexual orientation, and more.
These definitions are largely the same as those within current data protection laws and can relate to information that is collected through automated processes. Where GDPR differentiates from current data protection laws is that pseudonymised personal data can fall under the law — if it’s possible that a person could be identified by a pseudonym.