The General Data Protection Regulation (GDPR) is an EU law that strengthens and unifies data protection for individuals within the EU. It has 6 key principles for processing personal data lawfully, including only keeping data for as long as necessary. Under GDPR, personal data is any information relating to an identifiable individual. The regulation affects marketing practices and requires clear consent for data collection and use. Non-compliance can result in fines of up to 20 million euros. Organizations must be able to prove they know where all personal data is located to comply with GDPR.