data protection A system of laws intended to protect personal data from misuse by individuals or organizations. The first data protection laws were passed in the 1980s, and there have been various updates since. One of the best known data protection laws is the European General Data Protection Regulation (GDPR) which came into action in 2018. The effectiveness of data protection laws, though perhaps well-intended, has always been questionable and enforcement has been negligible or entirely absent despite conspicuous violations. Attempts to lawyer your way out of the problem of data misuse are less effective than using technical measures, such as client side encryption.