The topic about the personal data protection principles and the protection of the natural person’s data based on these principles is of great interest for both theory and practice. The article explores the application of the personal data protection principles. A focus is laid on the current and modernized basics for data protection as guarantee for better control and security of the natural person’s data in the modern digital world. Based on analysis of these principles, the focal points of their application are established. This is the basis which outlines the practicality of the principles related to regulating personal data collection, storage and processing.

Keywords: principles, personal data, lawfulness, transparency, accuracy, confidentiality, accountability.