The General Data Protection Regulation (GDPR) strengthens citizens' rights in the digital age and harmonizes data protection rules across the EU, enforcing rights regarding personal data and establishing legal bases for its processing. It applies to all companies handling the personal data of individuals in the EU, mandates a data protection officer for public administrations, and outlines citizens' rights to access, correct, and erase their data. Key considerations include the definitions of personal and sensitive data, legal obligations, and the balance between public interest and individual rights.